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Finding the Third Proportional to 5,197.69 and 11,139.56

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Solution

The third proportional to 5,197.69 and 11,139.56 is: 23,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.69 : 11,139.56 = 11,139.56 : x
  2. Step 2: Convert to fraction form
    5,197.69/11,139.56 = 11,139.56/x
  3. Step 3: Cross multiply
    5,197.69x = 11,139.56 × 11,139.56
  4. Step 4: Simplify right side
    5,197.69x = 124,089,852.69
  5. Step 5: Solve for x
    x = 124,089,852.69/5,197.69
  6. Step 6: Final answer
    x = 23,874.05

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.