Home / 13,565.18-20,346.96-3,704.78

Finding the Fourth Proportional to 13,565.18, 20,346.96 and 3,704.78

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Solution

The fourth proportional to 13,565.18, 20,346.96 and 3,704.78 is: 5,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.18 : 20,346.96 = 3,704.78 : x
  2. Step 2: Convert to fraction form
    13,565.18/20,346.96 = 3,704.78/x
  3. Step 3: Cross multiply
    13,565.18x = 20,346.96 × 3,704.78
  4. Step 4: Simplify right side
    13,565.18x = 75,381,010.47
  5. Step 5: Solve for x
    x = 75,381,010.47/13,565.18
  6. Step 6: Final answer
    x = 5,556.95

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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.