Home / 15,600.52-21,517.44-9,929.68

Finding the Fourth Proportional to 15,600.52, 21,517.44 and 9,929.68

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Solution

The fourth proportional to 15,600.52, 21,517.44 and 9,929.68 is: 13,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.52 : 21,517.44 = 9,929.68 : x
  2. Step 2: Convert to fraction form
    15,600.52/21,517.44 = 9,929.68/x
  3. Step 3: Cross multiply
    15,600.52x = 21,517.44 × 9,929.68
  4. Step 4: Simplify right side
    15,600.52x = 213,661,293.62
  5. Step 5: Solve for x
    x = 213,661,293.62/15,600.52
  6. Step 6: Final answer
    x = 13,695.78

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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.