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Finding the Third Proportional to 7,119.75 and 10,851.75

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Solution

The third proportional to 7,119.75 and 10,851.75 is: 16,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.75 : 10,851.75 = 10,851.75 : x
  2. Step 2: Convert to fraction form
    7,119.75/10,851.75 = 10,851.75/x
  3. Step 3: Cross multiply
    7,119.75x = 10,851.75 × 10,851.75
  4. Step 4: Simplify right side
    7,119.75x = 117,760,478.06
  5. Step 5: Solve for x
    x = 117,760,478.06/7,119.75
  6. Step 6: Final answer
    x = 16,539.97

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.