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Finding the Third Proportional to 8,412 and 18,298

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Solution

The third proportional to 8,412 and 18,298 is: 39,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412 : 18,298 = 18,298 : x
  2. Step 2: Convert to fraction form
    8,412/18,298 = 18,298/x
  3. Step 3: Cross multiply
    8,412x = 18,298 × 18,298
  4. Step 4: Simplify right side
    8,412x = 334,816,804
  5. Step 5: Solve for x
    x = 334,816,804/8,412
  6. Step 6: Final answer
    x = 39,802.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.