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Finding the Third Proportional to 5,040.50 and 7,488.75

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Solution

The third proportional to 5,040.50 and 7,488.75 is: 11,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.50 : 7,488.75 = 7,488.75 : x
  2. Step 2: Convert to fraction form
    5,040.50/7,488.75 = 7,488.75/x
  3. Step 3: Cross multiply
    5,040.50x = 7,488.75 × 7,488.75
  4. Step 4: Simplify right side
    5,040.50x = 56,081,376.56
  5. Step 5: Solve for x
    x = 56,081,376.56/5,040.50
  6. Step 6: Final answer
    x = 11,126.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.