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Finding the Third Proportional to 3,846 and 8,398.50

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Solution

The third proportional to 3,846 and 8,398.50 is: 18,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846 : 8,398.50 = 8,398.50 : x
  2. Step 2: Convert to fraction form
    3,846/8,398.50 = 8,398.50/x
  3. Step 3: Cross multiply
    3,846x = 8,398.50 × 8,398.50
  4. Step 4: Simplify right side
    3,846x = 70,534,802.25
  5. Step 5: Solve for x
    x = 70,534,802.25/3,846
  6. Step 6: Final answer
    x = 18,339.78

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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.