Home / 8,234.20-12,332.10-5,123.80

Finding the Fourth Proportional to 8,234.20, 12,332.10 and 5,123.80

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Solution

The fourth proportional to 8,234.20, 12,332.10 and 5,123.80 is: 7,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,234.20 : 12,332.10 = 5,123.80 : x
  2. Step 2: Convert to fraction form
    8,234.20/12,332.10 = 5,123.80/x
  3. Step 3: Cross multiply
    8,234.20x = 12,332.10 × 5,123.80
  4. Step 4: Simplify right side
    8,234.20x = 63,187,213.98
  5. Step 5: Solve for x
    x = 63,187,213.98/8,234.20
  6. Step 6: Final answer
    x = 7,673.75

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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.