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Finding the Third Proportional to 9,888 and 11,616

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Solution

The third proportional to 9,888 and 11,616 is: 13,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888 : 11,616 = 11,616 : x
  2. Step 2: Convert to fraction form
    9,888/11,616 = 11,616/x
  3. Step 3: Cross multiply
    9,888x = 11,616 × 11,616
  4. Step 4: Simplify right side
    9,888x = 134,931,456
  5. Step 5: Solve for x
    x = 134,931,456/9,888
  6. Step 6: Final answer
    x = 13,645.98

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.