Home / 13,398.08-18,493.20-8,092

Finding the Fourth Proportional to 13,398.08, 18,493.20 and 8,092

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Solution

The fourth proportional to 13,398.08, 18,493.20 and 8,092 is: 11,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.08 : 18,493.20 = 8,092 : x
  2. Step 2: Convert to fraction form
    13,398.08/18,493.20 = 8,092/x
  3. Step 3: Cross multiply
    13,398.08x = 18,493.20 × 8,092
  4. Step 4: Simplify right side
    13,398.08x = 149,646,974.40
  5. Step 5: Solve for x
    x = 149,646,974.40/13,398.08
  6. Step 6: Final answer
    x = 11,169.29

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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.