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Finding the Third Proportional to 12,119.63 and 18,192.38

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Solution

The third proportional to 12,119.63 and 18,192.38 is: 27,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.63 : 18,192.38 = 18,192.38 : x
  2. Step 2: Convert to fraction form
    12,119.63/18,192.38 = 18,192.38/x
  3. Step 3: Cross multiply
    12,119.63x = 18,192.38 × 18,192.38
  4. Step 4: Simplify right side
    12,119.63x = 330,962,508.14
  5. Step 5: Solve for x
    x = 330,962,508.14/12,119.63
  6. Step 6: Final answer
    x = 27,307.98

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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.