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Finding the Fourth Proportional to 10,388.52, 15,590.16 and 8,053.92

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Solution

The fourth proportional to 10,388.52, 15,590.16 and 8,053.92 is: 12,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.52 : 15,590.16 = 8,053.92 : x
  2. Step 2: Convert to fraction form
    10,388.52/15,590.16 = 8,053.92/x
  3. Step 3: Cross multiply
    10,388.52x = 15,590.16 × 8,053.92
  4. Step 4: Simplify right side
    10,388.52x = 125,561,901.43
  5. Step 5: Solve for x
    x = 125,561,901.43/10,388.52
  6. Step 6: Final answer
    x = 12,086.60

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1.5x scale

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.