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Finding the Fourth Proportional to 8,630.64, 12,945.96 and 3,697.08

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Solution

The fourth proportional to 8,630.64, 12,945.96 and 3,697.08 is: 5,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.64 : 12,945.96 = 3,697.08 : x
  2. Step 2: Convert to fraction form
    8,630.64/12,945.96 = 3,697.08/x
  3. Step 3: Cross multiply
    8,630.64x = 12,945.96 × 3,697.08
  4. Step 4: Simplify right side
    8,630.64x = 47,862,249.80
  5. Step 5: Solve for x
    x = 47,862,249.80/8,630.64
  6. Step 6: Final answer
    x = 5,545.62

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Similar ratio
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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.