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Finding the Fourth Proportional to 8,227.71, 12,330.38 and 3,479.92

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Solution

The fourth proportional to 8,227.71, 12,330.38 and 3,479.92 is: 5,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.71 : 12,330.38 = 3,479.92 : x
  2. Step 2: Convert to fraction form
    8,227.71/12,330.38 = 3,479.92/x
  3. Step 3: Cross multiply
    8,227.71x = 12,330.38 × 3,479.92
  4. Step 4: Simplify right side
    8,227.71x = 42,908,696.44
  5. Step 5: Solve for x
    x = 42,908,696.44/8,227.71
  6. Step 6: Final answer
    x = 5,215.15

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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.