Home / 8,229.87-12,316.10-6,731.78

Finding the Fourth Proportional to 8,229.87, 12,316.10 and 6,731.78

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Solution

The fourth proportional to 8,229.87, 12,316.10 and 6,731.78 is: 10,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.87 : 12,316.10 = 6,731.78 : x
  2. Step 2: Convert to fraction form
    8,229.87/12,316.10 = 6,731.78/x
  3. Step 3: Cross multiply
    8,229.87x = 12,316.10 × 6,731.78
  4. Step 4: Simplify right side
    8,229.87x = 82,909,180.42
  5. Step 5: Solve for x
    x = 82,909,180.42/8,229.87
  6. Step 6: Final answer
    x = 10,074.18

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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.