Which of the following shows a proportion?
Answer

eight over eighteen equals twelve over twenty-seven

six over four equals eight over twelve

twelve over twenty equals ten over eighteen

three over eight equals ten over fifteen

Question

Which of the following shows a proportion?
Answer
		
eight over eighteen equals twelve over twenty-seven
		
six over four equals eight over twelve
		
twelve over twenty equals ten over eighteen
		
three over eight equals ten over fifteen

mertsj · Answer

$$\frac{8}{18}=\frac{12}{27}$$

mertsj · Answer

Multiply the cross products.  If they are equal, it is a proportion.

mertsj · Answer

Does 8 times 27 = 18 times 12?

mertsj · Answer

216=216 !!!
Yes.  It is a proportion