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Finding the Third Proportional to 6,660 and 11,836

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Solution

The third proportional to 6,660 and 11,836 is: 21,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660 : 11,836 = 11,836 : x
  2. Step 2: Convert to fraction form
    6,660/11,836 = 11,836/x
  3. Step 3: Cross multiply
    6,660x = 11,836 × 11,836
  4. Step 4: Simplify right side
    6,660x = 140,090,896
  5. Step 5: Solve for x
    x = 140,090,896/6,660
  6. Step 6: Final answer
    x = 21,034.67

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.