Proportional Cross Products

Which of the following ratios would be proportional to 1/2?

• 6/8

• 2/5

• 9/18

• 5/10

• 4/12

Which of the following is NOT a way to test for proportionality?

• Cross Products

• Cross Reduce

• Common Denominator

• Scale Factor

• Simplify

Do these ratios have a proportional relationship? (Test for proportionality using at least two of the five ways we learned.)

• Yes, these ratios are proportional.

• No, these ratios are not proportional.

Do these ratios have a proportional relationship? (Test for proportionality using at least two of the five ways we learned.)

• Yes, these ratios are proportional.

• No, these ratios are not proportional.

Do these ratios have a proportional relationship? (Test for proportionality using at least two of the five ways we learned.)

• Yes, these ratios are proportional.

• No, these ratios are not proportional.

Find the missing value in the proportional relationship.

• 7

• 6

• 1

• 5

Find the missing value in the proportional relationship.

• 106

• 96

• 120

• 108

Find the missing value in the proportional relationship.

• 15

• 40

• 32

• 30

Do these ratios have a proportional relationship? (Test for proportionality using at least two of the five ways we learned.)

• Yes, these ratios are proportional.

• No, these ratios are not proportional.

Is this table proportional?

• Yes

• No