Finding the Fourth Proportional to 15,177.18, 20,944.53 and 8,804.99
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Solution
The fourth proportional to 15,177.18, 20,944.53 and 8,804.99 is: 12,150.89
Step by Step Solution
- Step 1: Write the proportion equation
15,177.18 : 20,944.53 = 8,804.99 : x - Step 2: Convert to fraction form
15,177.18/20,944.53 = 8,804.99/x - Step 3: Cross multiply
15,177.18x = 20,944.53 × 8,804.99 - Step 4: Simplify right side
15,177.18x = 184,416,272.48 - Step 5: Solve for x
x = 184,416,272.48/15,177.18 - Step 6: Final answer
x = 12,150.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.