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Finding the Fourth Proportional to 8,250.75, 12,375.77 and 4,089.15

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Solution

The fourth proportional to 8,250.75, 12,375.77 and 4,089.15 is: 6,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.75 : 12,375.77 = 4,089.15 : x
  2. Step 2: Convert to fraction form
    8,250.75/12,375.77 = 4,089.15/x
  3. Step 3: Cross multiply
    8,250.75x = 12,375.77 × 4,089.15
  4. Step 4: Simplify right side
    8,250.75x = 50,606,359.45
  5. Step 5: Solve for x
    x = 50,606,359.45/8,250.75
  6. Step 6: Final answer
    x = 6,133.55

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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.