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Finding the Fourth Proportional to 8,553.04, 12,747.20 and 8,540.08

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Solution

The fourth proportional to 8,553.04, 12,747.20 and 8,540.08 is: 12,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.04 : 12,747.20 = 8,540.08 : x
  2. Step 2: Convert to fraction form
    8,553.04/12,747.20 = 8,540.08/x
  3. Step 3: Cross multiply
    8,553.04x = 12,747.20 × 8,540.08
  4. Step 4: Simplify right side
    8,553.04x = 108,862,107.78
  5. Step 5: Solve for x
    x = 108,862,107.78/8,553.04
  6. Step 6: Final answer
    x = 12,727.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.