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Finding the Third Proportional to 10,419 and 11,895

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Solution

The third proportional to 10,419 and 11,895 is: 13,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419 : 11,895 = 11,895 : x
  2. Step 2: Convert to fraction form
    10,419/11,895 = 11,895/x
  3. Step 3: Cross multiply
    10,419x = 11,895 × 11,895
  4. Step 4: Simplify right side
    10,419x = 141,491,025
  5. Step 5: Solve for x
    x = 141,491,025/10,419
  6. Step 6: Final answer
    x = 13,580.10

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.