Home / 11,982.31-17,961.23-4,184.71

Finding the Fourth Proportional to 11,982.31, 17,961.23 and 4,184.71

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Solution

The fourth proportional to 11,982.31, 17,961.23 and 4,184.71 is: 6,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.31 : 17,961.23 = 4,184.71 : x
  2. Step 2: Convert to fraction form
    11,982.31/17,961.23 = 4,184.71/x
  3. Step 3: Cross multiply
    11,982.31x = 17,961.23 × 4,184.71
  4. Step 4: Simplify right side
    11,982.31x = 75,162,517.87
  5. Step 5: Solve for x
    x = 75,162,517.87/11,982.31
  6. Step 6: Final answer
    x = 6,272.79

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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.