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Finding the Fourth Proportional to 16,373.68, 22,604.20 and 12,780.92

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Solution

The fourth proportional to 16,373.68, 22,604.20 and 12,780.92 is: 17,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,373.68 : 22,604.20 = 12,780.92 : x
  2. Step 2: Convert to fraction form
    16,373.68/22,604.20 = 12,780.92/x
  3. Step 3: Cross multiply
    16,373.68x = 22,604.20 × 12,780.92
  4. Step 4: Simplify right side
    16,373.68x = 288,902,471.86
  5. Step 5: Solve for x
    x = 288,902,471.86/16,373.68
  6. Step 6: Final answer
    x = 17,644.32

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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.