Please help

Question

Please help

oleg3321 · Answer

Which of the following is not a proportion?
 	
	four over five equals eight over ten
	eighteen over six equals twelve over four
	six over sixteen equals three over eight
	twenty-seven over nine equals twenty-two over four

oleg3321 · Answer

@MARC_D

mehek14 · Answer

Do they look like fractions?

oleg3321 · Answer

yes there all fractions

oleg3321 · Answer

Im thinking its 4th choice but im not sure.

mehek14 · Answer

Alright let me convert them :)

$\dfrac{4}{5}=\dfrac{8}{10}$

$\dfrac{18}{6}=\dfrac{12}{4}$

$\dfrac{6}{16}=\dfrac{3}{8}$

$\dfrac{27}{9}=\dfrac{22}{4}$

mehek14 · Answer

Option A: We get it by multiplying everything by 2, so A is a proportion.

mehek14 · Answer

Option B: We can cross multiply

$6 * 12 = 72\18*4=72\72=72$

Option B is a proportion as well.

mehek14 · Answer

Option C: We divide by 2, so it is a proportion.

mehek14 · Answer

Option D: Try cross multiplication

$27*4=108\9*22=198$

$108 \neq 198$

Option D is not a proportion, so it is correct.

oleg3321 · Answer

ok understood, thanks

mehek14 · Answer

You're welcome.