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Finding the Third Proportional to 13,390 and 15,334

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Solution

The third proportional to 13,390 and 15,334 is: 17,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390 : 15,334 = 15,334 : x
  2. Step 2: Convert to fraction form
    13,390/15,334 = 15,334/x
  3. Step 3: Cross multiply
    13,390x = 15,334 × 15,334
  4. Step 4: Simplify right side
    13,390x = 235,131,556
  5. Step 5: Solve for x
    x = 235,131,556/13,390
  6. Step 6: Final answer
    x = 17,560.24

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.