Solving Word Problems Using Proportions

The ratio of parrots to cats in a pet store is 5 to 20. If there are 4 parrots, how many cats are there?

• 16

• 20

• 1

• 25

The ratio of boys to girls in Mrs. Alonso’s 3^rd period is 2 to 5. If there are six boys, how many girls are there?

• 15

• 3

• 6

• 20

Sarah used 9 red beads and 12 blue beads to make a bracelet. Using this same pattern, how many blue beads would she need if she had 15 red beads?

• 20

• 45

• 30

• 10

Enrique’s car can drive 500 miles on 20 gallons of gas. If he wants to drive 50 miles, how much gas will his car need?

• 2 gallons

• 5 gallons

• 100 gallons

• 50 gallons

Bella is making a recipe that requires a certain ratio of sugar to flour. If she uses 16 cups of flour, how many cups of sugar does she need to maintain the ratio of 60:48?

• 3

• 15

• 20

• 10

Nick walked ¾ of a mile in 12 minutes. How long would it take him to walk three miles at this pace?

• 18 minutes

• 75 minutes

• 48 minutes

• 58 minutes

6. The fee to check luggage with a

new airline is based on the weight

of each bag. Brett paid $7.14 to

check a 42-pound bag. How

much will Eileen pay if her bag

weighs 63 pounds?

• $10.71

• $449.82

• $409

• $107.10

While preparing for a triathlon, Janecia swims 8 minutes for every 20 minutes she bikes.  If she swims 72 minutes, how long does she bike for?

• 180 minutes

• 144 minutes

• 92 minutes

• 80 minutes

Out of 50 students, 30 listed pizza as a favorite. If 190 students were surveyed, how many would list pizza as a favorite?

• 114 students would choose pizza as their favorite

• 55 students would choose pizza as their favorite

• 48 students would choose pizza as their favorite

• 168 students would choose pizza as their favorite

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90