Home / 13,943.91-20,915.89-5,936.61

Finding the Fourth Proportional to 13,943.91, 20,915.89 and 5,936.61

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Solution

The fourth proportional to 13,943.91, 20,915.89 and 5,936.61 is: 8,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.91 : 20,915.89 = 5,936.61 : x
  2. Step 2: Convert to fraction form
    13,943.91/20,915.89 = 5,936.61/x
  3. Step 3: Cross multiply
    13,943.91x = 20,915.89 × 5,936.61
  4. Step 4: Simplify right side
    13,943.91x = 124,169,481.73
  5. Step 5: Solve for x
    x = 124,169,481.73/13,943.91
  6. Step 6: Final answer
    x = 8,904.93

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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.