Home / 13,632.62-20,449.33-3,771.86

Finding the Fourth Proportional to 13,632.62, 20,449.33 and 3,771.86

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Solution

The fourth proportional to 13,632.62, 20,449.33 and 3,771.86 is: 5,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.62 : 20,449.33 = 3,771.86 : x
  2. Step 2: Convert to fraction form
    13,632.62/20,449.33 = 3,771.86/x
  3. Step 3: Cross multiply
    13,632.62x = 20,449.33 × 3,771.86
  4. Step 4: Simplify right side
    13,632.62x = 77,131,898.18
  5. Step 5: Solve for x
    x = 77,131,898.18/13,632.62
  6. Step 6: Final answer
    x = 5,657.89

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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.