Home / 10,229.49-15,337.41-8,257.55

Finding the Fourth Proportional to 10,229.49, 15,337.41 and 8,257.55

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Solution

The fourth proportional to 10,229.49, 15,337.41 and 8,257.55 is: 12,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,229.49 : 15,337.41 = 8,257.55 : x
  2. Step 2: Convert to fraction form
    10,229.49/15,337.41 = 8,257.55/x
  3. Step 3: Cross multiply
    10,229.49x = 15,337.41 × 8,257.55
  4. Step 4: Simplify right side
    10,229.49x = 126,649,379.81
  5. Step 5: Solve for x
    x = 126,649,379.81/10,229.49
  6. Step 6: Final answer
    x = 12,380.81

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1.5x scale

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.