Ratios and Setting Up Proportions

• 2

• 3

• 4

• 5

Solve the proportion:

• 4

• 8

• 14

• 10

Solve the proportion.

• 1

• 3

• 6

• 5

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Solve for x

• 1.5

• 2/3

• 3

• 2

What term means "an equation stating that two ratios are equivalent"?

• Proportion

• Ratio

• Fraction

• Unit Rate

How do you find the missing number in a proportion?

• Add Straight Across

• Subtract Straight Across

• Cross Divide

• Cross Multiply (Cross Product)

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20