Home / 8,224.20-12,330.22-4,269.78

Finding the Fourth Proportional to 8,224.20, 12,330.22 and 4,269.78

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Solution

The fourth proportional to 8,224.20, 12,330.22 and 4,269.78 is: 6,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,224.20 : 12,330.22 = 4,269.78 : x
  2. Step 2: Convert to fraction form
    8,224.20/12,330.22 = 4,269.78/x
  3. Step 3: Cross multiply
    8,224.20x = 12,330.22 × 4,269.78
  4. Step 4: Simplify right side
    8,224.20x = 52,647,326.75
  5. Step 5: Solve for x
    x = 52,647,326.75/8,224.20
  6. Step 6: Final answer
    x = 6,401.51

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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.