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Finding the Fourth Proportional to 8,168.75, 12,253.69 and 3,238.39

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Solution

The fourth proportional to 8,168.75, 12,253.69 and 3,238.39 is: 4,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.75 : 12,253.69 = 3,238.39 : x
  2. Step 2: Convert to fraction form
    8,168.75/12,253.69 = 3,238.39/x
  3. Step 3: Cross multiply
    8,168.75x = 12,253.69 × 3,238.39
  4. Step 4: Simplify right side
    8,168.75x = 39,682,227.16
  5. Step 5: Solve for x
    x = 39,682,227.16/8,168.75
  6. Step 6: Final answer
    x = 4,857.81

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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.