Well, you just have to use proportions! :-) They're SUPER easy to use, and SUPER fun! :-) Proportions is when you multiply the first fractions' denominator times the second fraction's numerator. In this case, it's 9 times 5. 9 times 5 = 45, and in order for it to be proportional, we must multiply the DENOMINATOR of the SECOND fraction TIMES the NUMERATOR of the FIRST fraction. Now, the term, "proportional", means that BOTH products should equal the SAME THING. So, that means if we got 45 as our FIRST answer, our SECOND answer MUST BE 45 to be the same and proportional. Now, how do we multiply 16 times X? Just divide 45 divided by 16, because the quotient will equal X. 45 divided by 16 = 2.8125. When we have a decimal like THIS, we just round it to the whole number and until the hundredths, (keep in note that that is how you MUST round in any decimal answer you have). So X = 2.81
Final Answer: X = 2.81 :-)
