Proportions Cross Products

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve the proportion.

• p=31.3

• p=308

• p=924

• p=532

Which ratio below is proportional to the ratio  5/6?

• 6/5

• 50/75

• 25/30

• 12/10

the products of the terms of the diagonals when two ratios are compared.

• Proportion

• Equivalent Ratios

• Butterfly Method

• Cross Products

Cross Products of a proportion are _________ equal.

• ALWAYS

• SOMETIMES

• RARELY

• NEVER

Select ALL statements that support these two ratios being NOT proportional.

• Both cross-products are 20.

• The cross-products are 10 and 40.

• The cross-products are 8 and 50.

• The simplified ratios are 1/5 and 4/5.

• The simplified ratios are both 4/5.

If the Cross Products are equal, then..................

• the two ratios are NOT proportional.

• the two ratios are proportional

Proportions are equal when...

• when the ratio is different

• when the cross products are equal

• when the numerators and denominators are equal straight across

• None of the above

If the cross products are equal, then...

• The two ratios are not proportional.

• The two ratios are proportional.