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Finding the Fourth Proportional to 12,925.28, 17,843.28 and 8,949.44

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Solution

The fourth proportional to 12,925.28, 17,843.28 and 8,949.44 is: 12,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.28 : 17,843.28 = 8,949.44 : x
  2. Step 2: Convert to fraction form
    12,925.28/17,843.28 = 8,949.44/x
  3. Step 3: Cross multiply
    12,925.28x = 17,843.28 × 8,949.44
  4. Step 4: Simplify right side
    12,925.28x = 159,687,363.76
  5. Step 5: Solve for x
    x = 159,687,363.76/12,925.28
  6. Step 6: Final answer
    x = 12,354.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.