Home / 13,540.12-20,306.50-4,773.88

Finding the Fourth Proportional to 13,540.12, 20,306.50 and 4,773.88

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Solution

The fourth proportional to 13,540.12, 20,306.50 and 4,773.88 is: 7,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.12 : 20,306.50 = 4,773.88 : x
  2. Step 2: Convert to fraction form
    13,540.12/20,306.50 = 4,773.88/x
  3. Step 3: Cross multiply
    13,540.12x = 20,306.50 × 4,773.88
  4. Step 4: Simplify right side
    13,540.12x = 96,940,794.22
  5. Step 5: Solve for x
    x = 96,940,794.22/13,540.12
  6. Step 6: Final answer
    x = 7,159.52

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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.