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Finding the Third Proportional to 12,860 and 19,427

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Solution

The third proportional to 12,860 and 19,427 is: 29,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860 : 19,427 = 19,427 : x
  2. Step 2: Convert to fraction form
    12,860/19,427 = 19,427/x
  3. Step 3: Cross multiply
    12,860x = 19,427 × 19,427
  4. Step 4: Simplify right side
    12,860x = 377,408,329
  5. Step 5: Solve for x
    x = 377,408,329/12,860
  6. Step 6: Final answer
    x = 29,347.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.