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Finding the Third Proportional to 8,336 and 11,320

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Solution

The third proportional to 8,336 and 11,320 is: 15,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336 : 11,320 = 11,320 : x
  2. Step 2: Convert to fraction form
    8,336/11,320 = 11,320/x
  3. Step 3: Cross multiply
    8,336x = 11,320 × 11,320
  4. Step 4: Simplify right side
    8,336x = 128,142,400
  5. Step 5: Solve for x
    x = 128,142,400/8,336
  6. Step 6: Final answer
    x = 15,372.17

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.