Home / 13,398.25-18,481.10-8,609.96

Finding the Fourth Proportional to 13,398.25, 18,481.10 and 8,609.96

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Solution

The fourth proportional to 13,398.25, 18,481.10 and 8,609.96 is: 11,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.25 : 18,481.10 = 8,609.96 : x
  2. Step 2: Convert to fraction form
    13,398.25/18,481.10 = 8,609.96/x
  3. Step 3: Cross multiply
    13,398.25x = 18,481.10 × 8,609.96
  4. Step 4: Simplify right side
    13,398.25x = 159,121,493.27
  5. Step 5: Solve for x
    x = 159,121,493.27/13,398.25
  6. Step 6: Final answer
    x = 11,876.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.