Home / 8,169.91-12,257.59-3,240.97

Finding the Fourth Proportional to 8,169.91, 12,257.59 and 3,240.97

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Solution

The fourth proportional to 8,169.91, 12,257.59 and 3,240.97 is: 4,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.91 : 12,257.59 = 3,240.97 : x
  2. Step 2: Convert to fraction form
    8,169.91/12,257.59 = 3,240.97/x
  3. Step 3: Cross multiply
    8,169.91x = 12,257.59 × 3,240.97
  4. Step 4: Simplify right side
    8,169.91x = 39,726,420.17
  5. Step 5: Solve for x
    x = 39,726,420.17/8,169.91
  6. Step 6: Final answer
    x = 4,862.53

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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.