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Finding the Third Proportional to 5,815 and 11,810

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Solution

The third proportional to 5,815 and 11,810 is: 23,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815 : 11,810 = 11,810 : x
  2. Step 2: Convert to fraction form
    5,815/11,810 = 11,810/x
  3. Step 3: Cross multiply
    5,815x = 11,810 × 11,810
  4. Step 4: Simplify right side
    5,815x = 139,476,100
  5. Step 5: Solve for x
    x = 139,476,100/5,815
  6. Step 6: Final answer
    x = 23,985.57

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.