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Finding the Third Proportional to 8,914 and 13,816

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Solution

The third proportional to 8,914 and 13,816 is: 21,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914 : 13,816 = 13,816 : x
  2. Step 2: Convert to fraction form
    8,914/13,816 = 13,816/x
  3. Step 3: Cross multiply
    8,914x = 13,816 × 13,816
  4. Step 4: Simplify right side
    8,914x = 190,881,856
  5. Step 5: Solve for x
    x = 190,881,856/8,914
  6. Step 6: Final answer
    x = 21,413.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.