Home / 10,042.92-15,117.12-9,156.96

Finding the Fourth Proportional to 10,042.92, 15,117.12 and 9,156.96

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Solution

The fourth proportional to 10,042.92, 15,117.12 and 9,156.96 is: 13,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,042.92 : 15,117.12 = 9,156.96 : x
  2. Step 2: Convert to fraction form
    10,042.92/15,117.12 = 9,156.96/x
  3. Step 3: Cross multiply
    10,042.92x = 15,117.12 × 9,156.96
  4. Step 4: Simplify right side
    10,042.92x = 138,426,863.16
  5. Step 5: Solve for x
    x = 138,426,863.16/10,042.92
  6. Step 6: Final answer
    x = 13,783.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.