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Finding the Fourth Proportional to 10,208.57, 15,308.21 and 3,963.87

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Solution

The fourth proportional to 10,208.57, 15,308.21 and 3,963.87 is: 5,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.57 : 15,308.21 = 3,963.87 : x
  2. Step 2: Convert to fraction form
    10,208.57/15,308.21 = 3,963.87/x
  3. Step 3: Cross multiply
    10,208.57x = 15,308.21 × 3,963.87
  4. Step 4: Simplify right side
    10,208.57x = 60,679,764.28
  5. Step 5: Solve for x
    x = 60,679,764.28/10,208.57
  6. Step 6: Final answer
    x = 5,944.01

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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.