Home / 11,866.20-17,791.12-8,536.52

Finding the Fourth Proportional to 11,866.20, 17,791.12 and 8,536.52

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Solution

The fourth proportional to 11,866.20, 17,791.12 and 8,536.52 is: 12,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.20 : 17,791.12 = 8,536.52 : x
  2. Step 2: Convert to fraction form
    11,866.20/17,791.12 = 8,536.52/x
  3. Step 3: Cross multiply
    11,866.20x = 17,791.12 × 8,536.52
  4. Step 4: Simplify right side
    11,866.20x = 151,874,251.70
  5. Step 5: Solve for x
    x = 151,874,251.70/11,866.20
  6. Step 6: Final answer
    x = 12,798.90

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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.