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Finding the Fourth Proportional to 8,601.53, 12,900.87 and 2,757.38

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Solution

The fourth proportional to 8,601.53, 12,900.87 and 2,757.38 is: 4,135.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.53 : 12,900.87 = 2,757.38 : x
  2. Step 2: Convert to fraction form
    8,601.53/12,900.87 = 2,757.38/x
  3. Step 3: Cross multiply
    8,601.53x = 12,900.87 × 2,757.38
  4. Step 4: Simplify right side
    8,601.53x = 35,572,536.42
  5. Step 5: Solve for x
    x = 35,572,536.42/8,601.53
  6. Step 6: Final answer
    x = 4,135.61

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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.