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Finding the Third Proportional to 6,115.50 and 11,043

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Solution

The third proportional to 6,115.50 and 11,043 is: 19,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.50 : 11,043 = 11,043 : x
  2. Step 2: Convert to fraction form
    6,115.50/11,043 = 11,043/x
  3. Step 3: Cross multiply
    6,115.50x = 11,043 × 11,043
  4. Step 4: Simplify right side
    6,115.50x = 121,947,849
  5. Step 5: Solve for x
    x = 121,947,849/6,115.50
  6. Step 6: Final answer
    x = 19,940.78

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.