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Finding the Third Proportional to 11,390 and 17,103

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Solution

The third proportional to 11,390 and 17,103 is: 25,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390 : 17,103 = 17,103 : x
  2. Step 2: Convert to fraction form
    11,390/17,103 = 17,103/x
  3. Step 3: Cross multiply
    11,390x = 17,103 × 17,103
  4. Step 4: Simplify right side
    11,390x = 292,512,609
  5. Step 5: Solve for x
    x = 292,512,609/11,390
  6. Step 6: Final answer
    x = 25,681.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.