Home / 8,171.33-12,252.87-3,791.86

Finding the Fourth Proportional to 8,171.33, 12,252.87 and 3,791.86

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Solution

The fourth proportional to 8,171.33, 12,252.87 and 3,791.86 is: 5,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.33 : 12,252.87 = 3,791.86 : x
  2. Step 2: Convert to fraction form
    8,171.33/12,252.87 = 3,791.86/x
  3. Step 3: Cross multiply
    8,171.33x = 12,252.87 × 3,791.86
  4. Step 4: Simplify right side
    8,171.33x = 46,461,137.01
  5. Step 5: Solve for x
    x = 46,461,137.01/8,171.33
  6. Step 6: Final answer
    x = 5,685.88

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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.