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Finding the Fourth Proportional to 8,103.98, 12,155.97 and 6,257.79

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Solution

The fourth proportional to 8,103.98, 12,155.97 and 6,257.79 is: 9,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.98 : 12,155.97 = 6,257.79 : x
  2. Step 2: Convert to fraction form
    8,103.98/12,155.97 = 6,257.79/x
  3. Step 3: Cross multiply
    8,103.98x = 12,155.97 × 6,257.79
  4. Step 4: Simplify right side
    8,103.98x = 76,069,530.97
  5. Step 5: Solve for x
    x = 76,069,530.97/8,103.98
  6. Step 6: Final answer
    x = 9,386.69

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Similar ratio
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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.