Home / 8,104.35-12,147.49-3,422.96

Finding the Fourth Proportional to 8,104.35, 12,147.49 and 3,422.96

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Solution

The fourth proportional to 8,104.35, 12,147.49 and 3,422.96 is: 5,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.35 : 12,147.49 = 3,422.96 : x
  2. Step 2: Convert to fraction form
    8,104.35/12,147.49 = 3,422.96/x
  3. Step 3: Cross multiply
    8,104.35x = 12,147.49 × 3,422.96
  4. Step 4: Simplify right side
    8,104.35x = 41,580,372.37
  5. Step 5: Solve for x
    x = 41,580,372.37/8,104.35
  6. Step 6: Final answer
    x = 5,130.62

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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.