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Finding the Third Proportional to 10,509 and 16,272

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Solution

The third proportional to 10,509 and 16,272 is: 25,195.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509 : 16,272 = 16,272 : x
  2. Step 2: Convert to fraction form
    10,509/16,272 = 16,272/x
  3. Step 3: Cross multiply
    10,509x = 16,272 × 16,272
  4. Step 4: Simplify right side
    10,509x = 264,777,984
  5. Step 5: Solve for x
    x = 264,777,984/10,509
  6. Step 6: Final answer
    x = 25,195.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.