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Finding the Third Proportional to 18,186 and 26,679

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Solution

The third proportional to 18,186 and 26,679 is: 39,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186 : 26,679 = 26,679 : x
  2. Step 2: Convert to fraction form
    18,186/26,679 = 26,679/x
  3. Step 3: Cross multiply
    18,186x = 26,679 × 26,679
  4. Step 4: Simplify right side
    18,186x = 711,769,041
  5. Step 5: Solve for x
    x = 711,769,041/18,186
  6. Step 6: Final answer
    x = 39,138.30

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.