Home / 11,983.38-17,958.87-9,387.06

Finding the Fourth Proportional to 11,983.38, 17,958.87 and 9,387.06

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Solution

The fourth proportional to 11,983.38, 17,958.87 and 9,387.06 is: 14,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.38 : 17,958.87 = 9,387.06 : x
  2. Step 2: Convert to fraction form
    11,983.38/17,958.87 = 9,387.06/x
  3. Step 3: Cross multiply
    11,983.38x = 17,958.87 × 9,387.06
  4. Step 4: Simplify right side
    11,983.38x = 168,580,990.22
  5. Step 5: Solve for x
    x = 168,580,990.22/11,983.38
  6. Step 6: Final answer
    x = 14,067.90

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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.