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Finding the Third Proportional to 7,455 and 11,865.75

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Solution

The third proportional to 7,455 and 11,865.75 is: 18,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455 : 11,865.75 = 11,865.75 : x
  2. Step 2: Convert to fraction form
    7,455/11,865.75 = 11,865.75/x
  3. Step 3: Cross multiply
    7,455x = 11,865.75 × 11,865.75
  4. Step 4: Simplify right side
    7,455x = 140,796,023.06
  5. Step 5: Solve for x
    x = 140,796,023.06/7,455
  6. Step 6: Final answer
    x = 18,886.12

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.