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Finding the Fourth Proportional to 16,891.60, 25,337.40 and 10,325.20

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Solution

The fourth proportional to 16,891.60, 25,337.40 and 10,325.20 is: 15,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.60 : 25,337.40 = 10,325.20 : x
  2. Step 2: Convert to fraction form
    16,891.60/25,337.40 = 10,325.20/x
  3. Step 3: Cross multiply
    16,891.60x = 25,337.40 × 10,325.20
  4. Step 4: Simplify right side
    16,891.60x = 261,613,722.48
  5. Step 5: Solve for x
    x = 261,613,722.48/16,891.60
  6. Step 6: Final answer
    x = 15,487.80

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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.