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Finding the Fourth Proportional to 17,256.60, 25,884.90 and 8,489.70

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Solution

The fourth proportional to 17,256.60, 25,884.90 and 8,489.70 is: 12,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,256.60 : 25,884.90 = 8,489.70 : x
  2. Step 2: Convert to fraction form
    17,256.60/25,884.90 = 8,489.70/x
  3. Step 3: Cross multiply
    17,256.60x = 25,884.90 × 8,489.70
  4. Step 4: Simplify right side
    17,256.60x = 219,755,035.53
  5. Step 5: Solve for x
    x = 219,755,035.53/17,256.60
  6. Step 6: Final answer
    x = 12,734.55

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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.