Home / 8,108.05-12,162.07-6,261.85

Finding the Fourth Proportional to 8,108.05, 12,162.07 and 6,261.85

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Solution

The fourth proportional to 8,108.05, 12,162.07 and 6,261.85 is: 9,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.05 : 12,162.07 = 6,261.85 : x
  2. Step 2: Convert to fraction form
    8,108.05/12,162.07 = 6,261.85/x
  3. Step 3: Cross multiply
    8,108.05x = 12,162.07 × 6,261.85
  4. Step 4: Simplify right side
    8,108.05x = 76,157,072.78
  5. Step 5: Solve for x
    x = 76,157,072.78/8,108.05
  6. Step 6: Final answer
    x = 9,392.78

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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.