Home / 12,236.38-18,355.92-3,914.44

Finding the Fourth Proportional to 12,236.38, 18,355.92 and 3,914.44

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Solution

The fourth proportional to 12,236.38, 18,355.92 and 3,914.44 is: 5,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.38 : 18,355.92 = 3,914.44 : x
  2. Step 2: Convert to fraction form
    12,236.38/18,355.92 = 3,914.44/x
  3. Step 3: Cross multiply
    12,236.38x = 18,355.92 × 3,914.44
  4. Step 4: Simplify right side
    12,236.38x = 71,853,147.48
  5. Step 5: Solve for x
    x = 71,853,147.48/12,236.38
  6. Step 6: Final answer
    x = 5,872.09

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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.