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Finding the Third Proportional to 12,103 and 18,153.75

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Solution

The third proportional to 12,103 and 18,153.75 is: 27,229.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103 : 18,153.75 = 18,153.75 : x
  2. Step 2: Convert to fraction form
    12,103/18,153.75 = 18,153.75/x
  3. Step 3: Cross multiply
    12,103x = 18,153.75 × 18,153.75
  4. Step 4: Simplify right side
    12,103x = 329,558,639.06
  5. Step 5: Solve for x
    x = 329,558,639.06/12,103
  6. Step 6: Final answer
    x = 27,229.50

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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.