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Finding the Third Proportional to 12,682 and 19,021

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Solution

The third proportional to 12,682 and 19,021 is: 28,528.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682 : 19,021 = 19,021 : x
  2. Step 2: Convert to fraction form
    12,682/19,021 = 19,021/x
  3. Step 3: Cross multiply
    12,682x = 19,021 × 19,021
  4. Step 4: Simplify right side
    12,682x = 361,798,441
  5. Step 5: Solve for x
    x = 361,798,441/12,682
  6. Step 6: Final answer
    x = 28,528.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.