Correct Proportions?

Which proportion is incorrect?

• a/b = d/c

• a/b = c/d

• c/d = a/b

• a/c = b/d

Which proportion is correct?

• a/b = d/c

• a/b = c/d

• c/d = b/a

• a/c = d/b

Which proportion is correct?

• a/b = d/c

• b/a = d/c

• a/c = d/b

• d/b = a/c

Complete the proportion. a/b = ___

• b/a

• d/c

• c/d

• c/a

Which proportion is INCORRECT?

• 8/6 = 9/x

• 8/9 = 6/x

• 9/x = 8/6

• x/9 = 8/6

Solve for x.

• 7.75

• 7

• 6.75

• 5.5

Which proportion is correct?

• a/b = c/d

• a/d = b/c

• b/c = d/a

• c/d = a/b

Which proportion is INCORRECT?

• a/b =d/c

• a/d = b/c

• b/c = d/a

• c/d = b/a

Which proportion is INCORRECT?

• 7/3 = x/6

• 7/x = 3/6

• 3/6 = x/7

• 6/3 = x/7

Solve for x.

• 10

• 14

• 18

• 20