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Finding the Fourth Proportional to 8,249.94, 12,375.63 and 3,865.05

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Solution

The fourth proportional to 8,249.94, 12,375.63 and 3,865.05 is: 5,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.94 : 12,375.63 = 3,865.05 : x
  2. Step 2: Convert to fraction form
    8,249.94/12,375.63 = 3,865.05/x
  3. Step 3: Cross multiply
    8,249.94x = 12,375.63 × 3,865.05
  4. Step 4: Simplify right side
    8,249.94x = 47,832,428.73
  5. Step 5: Solve for x
    x = 47,832,428.73/8,249.94
  6. Step 6: Final answer
    x = 5,797.91

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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.