Home / 26,655.62-39,939.67-9,115.88

Finding the Fourth Proportional to 26,655.62, 39,939.67 and 9,115.88

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Solution

The fourth proportional to 26,655.62, 39,939.67 and 9,115.88 is: 13,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,655.62 : 39,939.67 = 9,115.88 : x
  2. Step 2: Convert to fraction form
    26,655.62/39,939.67 = 9,115.88/x
  3. Step 3: Cross multiply
    26,655.62x = 39,939.67 × 9,115.88
  4. Step 4: Simplify right side
    26,655.62x = 364,085,216.17
  5. Step 5: Solve for x
    x = 364,085,216.17/26,655.62
  6. Step 6: Final answer
    x = 13,658.85

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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.