Home / 13,732.74-20,596.68-3,869.78

Finding the Fourth Proportional to 13,732.74, 20,596.68 and 3,869.78

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Solution

The fourth proportional to 13,732.74, 20,596.68 and 3,869.78 is: 5,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.74 : 20,596.68 = 3,869.78 : x
  2. Step 2: Convert to fraction form
    13,732.74/20,596.68 = 3,869.78/x
  3. Step 3: Cross multiply
    13,732.74x = 20,596.68 × 3,869.78
  4. Step 4: Simplify right side
    13,732.74x = 79,704,517.35
  5. Step 5: Solve for x
    x = 79,704,517.35/13,732.74
  6. Step 6: Final answer
    x = 5,803.98

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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.