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Finding the Third Proportional to 3,963 and 6,538.50

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Solution

The third proportional to 3,963 and 6,538.50 is: 10,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963 : 6,538.50 = 6,538.50 : x
  2. Step 2: Convert to fraction form
    3,963/6,538.50 = 6,538.50/x
  3. Step 3: Cross multiply
    3,963x = 6,538.50 × 6,538.50
  4. Step 4: Simplify right side
    3,963x = 42,751,982.25
  5. Step 5: Solve for x
    x = 42,751,982.25/3,963
  6. Step 6: Final answer
    x = 10,787.78

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.