Next time, please be clear about what you're looking for. You might say, " If 6 quarts cost $25, what would 18.4 quarts cost? Represent this cost as D.
Write and solve an equation of ratios to solve this for D:
Ratio of quarts = ratio of dollars
6 $25
---------- = ----------
18.4 D
Cross multiply: 6D = (18.4)($25)
Divide both sides of this equation by D. Be certain to provide the correct units of measurements ($). D = $ ?