Home / 13,874.79-20,819.97-5,555.43

Finding the Fourth Proportional to 13,874.79, 20,819.97 and 5,555.43

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Solution

The fourth proportional to 13,874.79, 20,819.97 and 5,555.43 is: 8,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.79 : 20,819.97 = 5,555.43 : x
  2. Step 2: Convert to fraction form
    13,874.79/20,819.97 = 5,555.43/x
  3. Step 3: Cross multiply
    13,874.79x = 20,819.97 × 5,555.43
  4. Step 4: Simplify right side
    13,874.79x = 115,663,885.94
  5. Step 5: Solve for x
    x = 115,663,885.94/13,874.79
  6. Step 6: Final answer
    x = 8,336.26

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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.