Home / 13,725.16-20,538.52-11,882.61

Finding the Fourth Proportional to 13,725.16, 20,538.52 and 11,882.61

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Solution

The fourth proportional to 13,725.16, 20,538.52 and 11,882.61 is: 17,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.16 : 20,538.52 = 11,882.61 : x
  2. Step 2: Convert to fraction form
    13,725.16/20,538.52 = 11,882.61/x
  3. Step 3: Cross multiply
    13,725.16x = 20,538.52 × 11,882.61
  4. Step 4: Simplify right side
    13,725.16x = 244,051,223.14
  5. Step 5: Solve for x
    x = 244,051,223.14/13,725.16
  6. Step 6: Final answer
    x = 17,781.30

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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.