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Finding the Third Proportional to 11,869.03 and 18,117.42

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Solution

The third proportional to 11,869.03 and 18,117.42 is: 27,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.03 : 18,117.42 = 18,117.42 : x
  2. Step 2: Convert to fraction form
    11,869.03/18,117.42 = 18,117.42/x
  3. Step 3: Cross multiply
    11,869.03x = 18,117.42 × 18,117.42
  4. Step 4: Simplify right side
    11,869.03x = 328,240,975.40
  5. Step 5: Solve for x
    x = 328,240,975.40/11,869.03
  6. Step 6: Final answer
    x = 27,655.25

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.