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Finding the Third Proportional to 5,103.75 and 7,479.75

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Solution

The third proportional to 5,103.75 and 7,479.75 is: 10,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.75 : 7,479.75 = 7,479.75 : x
  2. Step 2: Convert to fraction form
    5,103.75/7,479.75 = 7,479.75/x
  3. Step 3: Cross multiply
    5,103.75x = 7,479.75 × 7,479.75
  4. Step 4: Simplify right side
    5,103.75x = 55,946,660.06
  5. Step 5: Solve for x
    x = 55,946,660.06/5,103.75
  6. Step 6: Final answer
    x = 10,961.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.