Home / 13,418.43-20,135.84-8,481.27

Finding the Fourth Proportional to 13,418.43, 20,135.84 and 8,481.27

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Solution

The fourth proportional to 13,418.43, 20,135.84 and 8,481.27 is: 12,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.43 : 20,135.84 = 8,481.27 : x
  2. Step 2: Convert to fraction form
    13,418.43/20,135.84 = 8,481.27/x
  3. Step 3: Cross multiply
    13,418.43x = 20,135.84 × 8,481.27
  4. Step 4: Simplify right side
    13,418.43x = 170,777,453.31
  5. Step 5: Solve for x
    x = 170,777,453.31/13,418.43
  6. Step 6: Final answer
    x = 12,727.08

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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.