Home / 13,695.13-20,542.69-3,306.88

Finding the Fourth Proportional to 13,695.13, 20,542.69 and 3,306.88

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Solution

The fourth proportional to 13,695.13, 20,542.69 and 3,306.88 is: 4,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.13 : 20,542.69 = 3,306.88 : x
  2. Step 2: Convert to fraction form
    13,695.13/20,542.69 = 3,306.88/x
  3. Step 3: Cross multiply
    13,695.13x = 20,542.69 × 3,306.88
  4. Step 4: Simplify right side
    13,695.13x = 67,932,115.67
  5. Step 5: Solve for x
    x = 67,932,115.67/13,695.13
  6. Step 6: Final answer
    x = 4,960.31

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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.