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Finding the Fourth Proportional to 17,149.76, 25,727.52 and 8,385.44

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Solution

The fourth proportional to 17,149.76, 25,727.52 and 8,385.44 is: 12,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.76 : 25,727.52 = 8,385.44 : x
  2. Step 2: Convert to fraction form
    17,149.76/25,727.52 = 8,385.44/x
  3. Step 3: Cross multiply
    17,149.76x = 25,727.52 × 8,385.44
  4. Step 4: Simplify right side
    17,149.76x = 215,736,575.31
  5. Step 5: Solve for x
    x = 215,736,575.31/17,149.76
  6. Step 6: Final answer
    x = 12,579.57

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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.