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Finding the Fourth Proportional to 8,249.23, 12,373.85 and 3,869.70

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Solution

The fourth proportional to 8,249.23, 12,373.85 and 3,869.70 is: 5,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.23 : 12,373.85 = 3,869.70 : x
  2. Step 2: Convert to fraction form
    8,249.23/12,373.85 = 3,869.70/x
  3. Step 3: Cross multiply
    8,249.23x = 12,373.85 × 3,869.70
  4. Step 4: Simplify right side
    8,249.23x = 47,883,087.35
  5. Step 5: Solve for x
    x = 47,883,087.35/8,249.23
  6. Step 6: Final answer
    x = 5,804.55

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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.