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Finding the Third Proportional to 9,918 and 13,176

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Solution

The third proportional to 9,918 and 13,176 is: 17,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918 : 13,176 = 13,176 : x
  2. Step 2: Convert to fraction form
    9,918/13,176 = 13,176/x
  3. Step 3: Cross multiply
    9,918x = 13,176 × 13,176
  4. Step 4: Simplify right side
    9,918x = 173,606,976
  5. Step 5: Solve for x
    x = 173,606,976/9,918
  6. Step 6: Final answer
    x = 17,504.23

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.