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Finding the Fourth Proportional to 8,255.86, 12,375.45 and 4,098.87

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Solution

The fourth proportional to 8,255.86, 12,375.45 and 4,098.87 is: 6,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.86 : 12,375.45 = 4,098.87 : x
  2. Step 2: Convert to fraction form
    8,255.86/12,375.45 = 4,098.87/x
  3. Step 3: Cross multiply
    8,255.86x = 12,375.45 × 4,098.87
  4. Step 4: Simplify right side
    8,255.86x = 50,725,360.74
  5. Step 5: Solve for x
    x = 50,725,360.74/8,255.86
  6. Step 6: Final answer
    x = 6,144.17

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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.