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Finding the Third Proportional to 13,245 and 18,825

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Solution

The third proportional to 13,245 and 18,825 is: 26,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245 : 18,825 = 18,825 : x
  2. Step 2: Convert to fraction form
    13,245/18,825 = 18,825/x
  3. Step 3: Cross multiply
    13,245x = 18,825 × 18,825
  4. Step 4: Simplify right side
    13,245x = 354,380,625
  5. Step 5: Solve for x
    x = 354,380,625/13,245
  6. Step 6: Final answer
    x = 26,755.80

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.