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Finding the Fourth Proportional to 11,203, 16,800.39 and 3,805.47

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Solution

The fourth proportional to 11,203, 16,800.39 and 3,805.47 is: 5,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203 : 16,800.39 = 3,805.47 : x
  2. Step 2: Convert to fraction form
    11,203/16,800.39 = 3,805.47/x
  3. Step 3: Cross multiply
    11,203x = 16,800.39 × 3,805.47
  4. Step 4: Simplify right side
    11,203x = 63,933,380.13
  5. Step 5: Solve for x
    x = 63,933,380.13/11,203
  6. Step 6: Final answer
    x = 5,706.81

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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.