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Finding the Fourth Proportional to 13,335.89, 20,003.82 and 4,101.89

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Solution

The fourth proportional to 13,335.89, 20,003.82 and 4,101.89 is: 6,152.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.89 : 20,003.82 = 4,101.89 : x
  2. Step 2: Convert to fraction form
    13,335.89/20,003.82 = 4,101.89/x
  3. Step 3: Cross multiply
    13,335.89x = 20,003.82 × 4,101.89
  4. Step 4: Simplify right side
    13,335.89x = 82,053,469.22
  5. Step 5: Solve for x
    x = 82,053,469.22/13,335.89
  6. Step 6: Final answer
    x = 6,152.83

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1.5x scale

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.