Proportions Cross Products

Which ratio is proportional to 18/27?

• 1/9

• 12/18

• 21/30

• 90/220

Determine whether the ratios form a proportion:

• Proportional

• Not Proportional

Are x and y proportional?

• Yes

• No

Do these ratios form a proportion?

If YES please also select the cross product.

• Yes, their cross products are equal.

• NO, their cross products are not equal.

• 45

• 25

Are x and y proportional?

• Yes.

• No.

Select all ratios proportional to 10:35

• 4:14

• 5/30

• 1:3

• 2/7

• 100 to 350

Do 35:16 and 5:2 form a proportion?

• Yes, the cross products are both 70.

• Yes, the cross products are both 80.

• No the cross products are different.

The missing ratios in the ratio table are

Find the value of x so that the ratios are equivalent.