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Finding the Third Proportional to 13,290 and 18,234

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Solution

The third proportional to 13,290 and 18,234 is: 25,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290 : 18,234 = 18,234 : x
  2. Step 2: Convert to fraction form
    13,290/18,234 = 18,234/x
  3. Step 3: Cross multiply
    13,290x = 18,234 × 18,234
  4. Step 4: Simplify right side
    13,290x = 332,478,756
  5. Step 5: Solve for x
    x = 332,478,756/13,290
  6. Step 6: Final answer
    x = 25,017.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.