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Finding the Fourth Proportional to 7,996.71, 11,997.09 and 5,661.29

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Solution

The fourth proportional to 7,996.71, 11,997.09 and 5,661.29 is: 8,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,996.71 : 11,997.09 = 5,661.29 : x
  2. Step 2: Convert to fraction form
    7,996.71/11,997.09 = 5,661.29/x
  3. Step 3: Cross multiply
    7,996.71x = 11,997.09 × 5,661.29
  4. Step 4: Simplify right side
    7,996.71x = 67,918,945.66
  5. Step 5: Solve for x
    x = 67,918,945.66/7,996.71
  6. Step 6: Final answer
    x = 8,493.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.