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Finding the Third Proportional to 7,445 and 11,851

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Solution

The third proportional to 7,445 and 11,851 is: 18,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445 : 11,851 = 11,851 : x
  2. Step 2: Convert to fraction form
    7,445/11,851 = 11,851/x
  3. Step 3: Cross multiply
    7,445x = 11,851 × 11,851
  4. Step 4: Simplify right side
    7,445x = 140,446,201
  5. Step 5: Solve for x
    x = 140,446,201/7,445
  6. Step 6: Final answer
    x = 18,864.50

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.