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Finding the Third Proportional to 15,170 and 16,754

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Solution

The third proportional to 15,170 and 16,754 is: 18,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170 : 16,754 = 16,754 : x
  2. Step 2: Convert to fraction form
    15,170/16,754 = 16,754/x
  3. Step 3: Cross multiply
    15,170x = 16,754 × 16,754
  4. Step 4: Simplify right side
    15,170x = 280,696,516
  5. Step 5: Solve for x
    x = 280,696,516/15,170
  6. Step 6: Final answer
    x = 18,503.40

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.