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Finding the Third Proportional to 8,130.50 and 11,885

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Solution

The third proportional to 8,130.50 and 11,885 is: 17,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.50 : 11,885 = 11,885 : x
  2. Step 2: Convert to fraction form
    8,130.50/11,885 = 11,885/x
  3. Step 3: Cross multiply
    8,130.50x = 11,885 × 11,885
  4. Step 4: Simplify right side
    8,130.50x = 141,253,225
  5. Step 5: Solve for x
    x = 141,253,225/8,130.50
  6. Step 6: Final answer
    x = 17,373.25

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.