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Finding the Third Proportional to 7,455 and 11,242.50

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Solution

The third proportional to 7,455 and 11,242.50 is: 16,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455 : 11,242.50 = 11,242.50 : x
  2. Step 2: Convert to fraction form
    7,455/11,242.50 = 11,242.50/x
  3. Step 3: Cross multiply
    7,455x = 11,242.50 × 11,242.50
  4. Step 4: Simplify right side
    7,455x = 126,393,806.25
  5. Step 5: Solve for x
    x = 126,393,806.25/7,455
  6. Step 6: Final answer
    x = 16,954.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.