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Finding the Fourth Proportional to 15,761.81, 23,651.93 and 8,747.73

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Solution

The fourth proportional to 15,761.81, 23,651.93 and 8,747.73 is: 13,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.81 : 23,651.93 = 8,747.73 : x
  2. Step 2: Convert to fraction form
    15,761.81/23,651.93 = 8,747.73/x
  3. Step 3: Cross multiply
    15,761.81x = 23,651.93 × 8,747.73
  4. Step 4: Simplify right side
    15,761.81x = 206,900,719.49
  5. Step 5: Solve for x
    x = 206,900,719.49/15,761.81
  6. Step 6: Final answer
    x = 13,126.71

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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.