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Finding the Third Proportional to 6,945 and 10,913

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Solution

The third proportional to 6,945 and 10,913 is: 17,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945 : 10,913 = 10,913 : x
  2. Step 2: Convert to fraction form
    6,945/10,913 = 10,913/x
  3. Step 3: Cross multiply
    6,945x = 10,913 × 10,913
  4. Step 4: Simplify right side
    6,945x = 119,093,569
  5. Step 5: Solve for x
    x = 119,093,569/6,945
  6. Step 6: Final answer
    x = 17,148.10

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.