Home / 13,743.47-20,618.85-4,383.11

Finding the Fourth Proportional to 13,743.47, 20,618.85 and 4,383.11

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Solution

The fourth proportional to 13,743.47, 20,618.85 and 4,383.11 is: 6,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.47 : 20,618.85 = 4,383.11 : x
  2. Step 2: Convert to fraction form
    13,743.47/20,618.85 = 4,383.11/x
  3. Step 3: Cross multiply
    13,743.47x = 20,618.85 × 4,383.11
  4. Step 4: Simplify right side
    13,743.47x = 90,374,755.61
  5. Step 5: Solve for x
    x = 90,374,755.61/13,743.47
  6. Step 6: Final answer
    x = 6,575.83

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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.