Home / 10,429.80-15,630.84-3,849.90

Finding the Fourth Proportional to 10,429.80, 15,630.84 and 3,849.90

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Solution

The fourth proportional to 10,429.80, 15,630.84 and 3,849.90 is: 5,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.80 : 15,630.84 = 3,849.90 : x
  2. Step 2: Convert to fraction form
    10,429.80/15,630.84 = 3,849.90/x
  3. Step 3: Cross multiply
    10,429.80x = 15,630.84 × 3,849.90
  4. Step 4: Simplify right side
    10,429.80x = 60,177,170.92
  5. Step 5: Solve for x
    x = 60,177,170.92/10,429.80
  6. Step 6: Final answer
    x = 5,769.73

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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.