1. ProportionsProportions
by Andre Goinsby Andre Goins

2. Example proportions word problem
Step 1:Set up the
proportion.
x
15*x=5*60
15x=300
X=20
/15/15
Rooms
Minutes
5
15 60
Step 2: cross
multiply (multiply
the diagonals
Step 3:solve the
proportion

3. Example percents problem
Step 1:fill in the
“is/of”
x
100*x=49*300
100x=14700
X=147
/100/100
49
100 300
Step 2: cross
multiply
Step 3:

4. Unit Reflection
• I liked… Setting the proportions up.
• I didn’t like…cross multiplying
• The hardest part was…figuring out what
number to use.
• The easiest part was…solving the
proportion.