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Finding the Fourth Proportional to 8,339.96, 12,501.72 and 3,960.49

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Solution

The fourth proportional to 8,339.96, 12,501.72 and 3,960.49 is: 5,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.96 : 12,501.72 = 3,960.49 : x
  2. Step 2: Convert to fraction form
    8,339.96/12,501.72 = 3,960.49/x
  3. Step 3: Cross multiply
    8,339.96x = 12,501.72 × 3,960.49
  4. Step 4: Simplify right side
    8,339.96x = 49,512,937.04
  5. Step 5: Solve for x
    x = 49,512,937.04/8,339.96
  6. Step 6: Final answer
    x = 5,936.83

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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.