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Finding the Fourth Proportional to 16,456.80, 22,712.88 and 10,490.88

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Solution

The fourth proportional to 16,456.80, 22,712.88 and 10,490.88 is: 14,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,456.80 : 22,712.88 = 10,490.88 : x
  2. Step 2: Convert to fraction form
    16,456.80/22,712.88 = 10,490.88/x
  3. Step 3: Cross multiply
    16,456.80x = 22,712.88 × 10,490.88
  4. Step 4: Simplify right side
    16,456.80x = 238,278,098.53
  5. Step 5: Solve for x
    x = 238,278,098.53/16,456.80
  6. Step 6: Final answer
    x = 14,479.01

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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.