Home / 8,125.29-12,179.10-3,960.57

Finding the Fourth Proportional to 8,125.29, 12,179.10 and 3,960.57

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Solution

The fourth proportional to 8,125.29, 12,179.10 and 3,960.57 is: 5,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.29 : 12,179.10 = 3,960.57 : x
  2. Step 2: Convert to fraction form
    8,125.29/12,179.10 = 3,960.57/x
  3. Step 3: Cross multiply
    8,125.29x = 12,179.10 × 3,960.57
  4. Step 4: Simplify right side
    8,125.29x = 48,236,178.09
  5. Step 5: Solve for x
    x = 48,236,178.09/8,125.29
  6. Step 6: Final answer
    x = 5,936.55

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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.