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Finding the Fourth Proportional to 11,324.56, 16,981.56 and 4,305.88

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Solution

The fourth proportional to 11,324.56, 16,981.56 and 4,305.88 is: 6,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.56 : 16,981.56 = 4,305.88 : x
  2. Step 2: Convert to fraction form
    11,324.56/16,981.56 = 4,305.88/x
  3. Step 3: Cross multiply
    11,324.56x = 16,981.56 × 4,305.88
  4. Step 4: Simplify right side
    11,324.56x = 73,120,559.57
  5. Step 5: Solve for x
    x = 73,120,559.57/11,324.56
  6. Step 6: Final answer
    x = 6,456.81

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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.