Home / 11,387.90-17,052.01-9,154.87

Finding the Fourth Proportional to 11,387.90, 17,052.01 and 9,154.87

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Solution

The fourth proportional to 11,387.90, 17,052.01 and 9,154.87 is: 13,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.90 : 17,052.01 = 9,154.87 : x
  2. Step 2: Convert to fraction form
    11,387.90/17,052.01 = 9,154.87/x
  3. Step 3: Cross multiply
    11,387.90x = 17,052.01 × 9,154.87
  4. Step 4: Simplify right side
    11,387.90x = 156,108,934.79
  5. Step 5: Solve for x
    x = 156,108,934.79/11,387.90
  6. Step 6: Final answer
    x = 13,708.32

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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.