Home / 11,881.38-17,822.34-3,983.88

Finding the Fourth Proportional to 11,881.38, 17,822.34 and 3,983.88

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Solution

The fourth proportional to 11,881.38, 17,822.34 and 3,983.88 is: 5,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.38 : 17,822.34 = 3,983.88 : x
  2. Step 2: Convert to fraction form
    11,881.38/17,822.34 = 3,983.88/x
  3. Step 3: Cross multiply
    11,881.38x = 17,822.34 × 3,983.88
  4. Step 4: Simplify right side
    11,881.38x = 71,002,063.88
  5. Step 5: Solve for x
    x = 71,002,063.88/11,881.38
  6. Step 6: Final answer
    x = 5,975.91

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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.