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Finding the Third Proportional to 13,608 and 18,312

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Solution

The third proportional to 13,608 and 18,312 is: 24,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608 : 18,312 = 18,312 : x
  2. Step 2: Convert to fraction form
    13,608/18,312 = 18,312/x
  3. Step 3: Cross multiply
    13,608x = 18,312 × 18,312
  4. Step 4: Simplify right side
    13,608x = 335,329,344
  5. Step 5: Solve for x
    x = 335,329,344/13,608
  6. Step 6: Final answer
    x = 24,642.07

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.