Home / 13,845.17-20,765.13-3,713.69

Finding the Fourth Proportional to 13,845.17, 20,765.13 and 3,713.69

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Solution

The fourth proportional to 13,845.17, 20,765.13 and 3,713.69 is: 5,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.17 : 20,765.13 = 3,713.69 : x
  2. Step 2: Convert to fraction form
    13,845.17/20,765.13 = 3,713.69/x
  3. Step 3: Cross multiply
    13,845.17x = 20,765.13 × 3,713.69
  4. Step 4: Simplify right side
    13,845.17x = 77,115,151.80
  5. Step 5: Solve for x
    x = 77,115,151.80/13,845.17
  6. Step 6: Final answer
    x = 5,569.83

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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.