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Finding the Third Proportional to 12,768 and 17,080

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Solution

The third proportional to 12,768 and 17,080 is: 22,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768 : 17,080 = 17,080 : x
  2. Step 2: Convert to fraction form
    12,768/17,080 = 17,080/x
  3. Step 3: Cross multiply
    12,768x = 17,080 × 17,080
  4. Step 4: Simplify right side
    12,768x = 291,726,400
  5. Step 5: Solve for x
    x = 291,726,400/12,768
  6. Step 6: Final answer
    x = 22,848.25

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.