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Finding the Fourth Proportional to 13,338.50, 20,008.02 and 4,104.50

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Solution

The fourth proportional to 13,338.50, 20,008.02 and 4,104.50 is: 6,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.50 : 20,008.02 = 4,104.50 : x
  2. Step 2: Convert to fraction form
    13,338.50/20,008.02 = 4,104.50/x
  3. Step 3: Cross multiply
    13,338.50x = 20,008.02 × 4,104.50
  4. Step 4: Simplify right side
    13,338.50x = 82,122,918.09
  5. Step 5: Solve for x
    x = 82,122,918.09/13,338.50
  6. Step 6: Final answer
    x = 6,156.83

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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.