Home / 13,676.97-18,864.85-8,374.41

Finding the Fourth Proportional to 13,676.97, 18,864.85 and 8,374.41

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Solution

The fourth proportional to 13,676.97, 18,864.85 and 8,374.41 is: 11,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.97 : 18,864.85 = 8,374.41 : x
  2. Step 2: Convert to fraction form
    13,676.97/18,864.85 = 8,374.41/x
  3. Step 3: Cross multiply
    13,676.97x = 18,864.85 × 8,374.41
  4. Step 4: Simplify right side
    13,676.97x = 157,981,946.62
  5. Step 5: Solve for x
    x = 157,981,946.62/13,676.97
  6. Step 6: Final answer
    x = 11,550.95

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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.