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Finding the Third Proportional to 12,274 and 18,779

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Solution

The third proportional to 12,274 and 18,779 is: 28,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274 : 18,779 = 18,779 : x
  2. Step 2: Convert to fraction form
    12,274/18,779 = 18,779/x
  3. Step 3: Cross multiply
    12,274x = 18,779 × 18,779
  4. Step 4: Simplify right side
    12,274x = 352,650,841
  5. Step 5: Solve for x
    x = 352,650,841/12,274
  6. Step 6: Final answer
    x = 28,731.53

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.