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Finding the Fourth Proportional to 7,996.88, 11,999.64 and 3,892.88

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Solution

The fourth proportional to 7,996.88, 11,999.64 and 3,892.88 is: 5,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,996.88 : 11,999.64 = 3,892.88 : x
  2. Step 2: Convert to fraction form
    7,996.88/11,999.64 = 3,892.88/x
  3. Step 3: Cross multiply
    7,996.88x = 11,999.64 × 3,892.88
  4. Step 4: Simplify right side
    7,996.88x = 46,713,098.57
  5. Step 5: Solve for x
    x = 46,713,098.57/7,996.88
  6. Step 6: Final answer
    x = 5,841.42

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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.