Home / 8,517.78-11,753.56-4,932.81

Finding the Fourth Proportional to 8,517.78, 11,753.56 and 4,932.81

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Solution

The fourth proportional to 8,517.78, 11,753.56 and 4,932.81 is: 6,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.78 : 11,753.56 = 4,932.81 : x
  2. Step 2: Convert to fraction form
    8,517.78/11,753.56 = 4,932.81/x
  3. Step 3: Cross multiply
    8,517.78x = 11,753.56 × 4,932.81
  4. Step 4: Simplify right side
    8,517.78x = 57,978,065.97
  5. Step 5: Solve for x
    x = 57,978,065.97/8,517.78
  6. Step 6: Final answer
    x = 6,806.71

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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.