Home / 8,261.58-12,398.01-3,331.61

Finding the Fourth Proportional to 8,261.58, 12,398.01 and 3,331.61

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Solution

The fourth proportional to 8,261.58, 12,398.01 and 3,331.61 is: 4,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.58 : 12,398.01 = 3,331.61 : x
  2. Step 2: Convert to fraction form
    8,261.58/12,398.01 = 3,331.61/x
  3. Step 3: Cross multiply
    8,261.58x = 12,398.01 × 3,331.61
  4. Step 4: Simplify right side
    8,261.58x = 41,305,334.10
  5. Step 5: Solve for x
    x = 41,305,334.10/8,261.58
  6. Step 6: Final answer
    x = 4,999.69

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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.