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Finding the Third Proportional to 7,855 and 16,790

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Solution

The third proportional to 7,855 and 16,790 is: 35,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855 : 16,790 = 16,790 : x
  2. Step 2: Convert to fraction form
    7,855/16,790 = 16,790/x
  3. Step 3: Cross multiply
    7,855x = 16,790 × 16,790
  4. Step 4: Simplify right side
    7,855x = 281,904,100
  5. Step 5: Solve for x
    x = 281,904,100/7,855
  6. Step 6: Final answer
    x = 35,888.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.