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Finding the Fourth Proportional to 8,655.53, 12,981.44 and 2,732.88

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Solution

The fourth proportional to 8,655.53, 12,981.44 and 2,732.88 is: 4,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.53 : 12,981.44 = 2,732.88 : x
  2. Step 2: Convert to fraction form
    8,655.53/12,981.44 = 2,732.88/x
  3. Step 3: Cross multiply
    8,655.53x = 12,981.44 × 2,732.88
  4. Step 4: Simplify right side
    8,655.53x = 35,476,704.08
  5. Step 5: Solve for x
    x = 35,476,704.08/8,655.53
  6. Step 6: Final answer
    x = 4,098.73

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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.