Home / 8,131.73-12,201.69-3,204.91

Finding the Fourth Proportional to 8,131.73, 12,201.69 and 3,204.91

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Solution

The fourth proportional to 8,131.73, 12,201.69 and 3,204.91 is: 4,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.73 : 12,201.69 = 3,204.91 : x
  2. Step 2: Convert to fraction form
    8,131.73/12,201.69 = 3,204.91/x
  3. Step 3: Cross multiply
    8,131.73x = 12,201.69 × 3,204.91
  4. Step 4: Simplify right side
    8,131.73x = 39,105,257.29
  5. Step 5: Solve for x
    x = 39,105,257.29/8,131.73
  6. Step 6: Final answer
    x = 4,808.97

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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.