Finding the Fourth Proportional to 10,080.96, 15,121.44 and 3,156
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Solution
The fourth proportional to 10,080.96, 15,121.44 and 3,156 is: 4,734.00
Step by Step Solution
- Step 1: Write the proportion equation
10,080.96 : 15,121.44 = 3,156 : x - Step 2: Convert to fraction form
10,080.96/15,121.44 = 3,156/x - Step 3: Cross multiply
10,080.96x = 15,121.44 × 3,156 - Step 4: Simplify right side
10,080.96x = 47,723,264.64 - Step 5: Solve for x
x = 47,723,264.64/10,080.96 - Step 6: Final answer
x = 4,734.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.