Home / 8,161.86-12,240.94-3,997.70

Finding the Fourth Proportional to 8,161.86, 12,240.94 and 3,997.70

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Solution

The fourth proportional to 8,161.86, 12,240.94 and 3,997.70 is: 5,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.86 : 12,240.94 = 3,997.70 : x
  2. Step 2: Convert to fraction form
    8,161.86/12,240.94 = 3,997.70/x
  3. Step 3: Cross multiply
    8,161.86x = 12,240.94 × 3,997.70
  4. Step 4: Simplify right side
    8,161.86x = 48,935,605.84
  5. Step 5: Solve for x
    x = 48,935,605.84/8,161.86
  6. Step 6: Final answer
    x = 5,995.64

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Double scale
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Similar ratio
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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.