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Finding the Third Proportional to 12,215 and 26,982

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Solution

The third proportional to 12,215 and 26,982 is: 59,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215 : 26,982 = 26,982 : x
  2. Step 2: Convert to fraction form
    12,215/26,982 = 26,982/x
  3. Step 3: Cross multiply
    12,215x = 26,982 × 26,982
  4. Step 4: Simplify right side
    12,215x = 728,028,324
  5. Step 5: Solve for x
    x = 728,028,324/12,215
  6. Step 6: Final answer
    x = 59,601.17

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.