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Finding the Fourth Proportional to 7,673.88, 11,512.26 and 5,311.92

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Solution

The fourth proportional to 7,673.88, 11,512.26 and 5,311.92 is: 7,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.88 : 11,512.26 = 5,311.92 : x
  2. Step 2: Convert to fraction form
    7,673.88/11,512.26 = 5,311.92/x
  3. Step 3: Cross multiply
    7,673.88x = 11,512.26 × 5,311.92
  4. Step 4: Simplify right side
    7,673.88x = 61,152,204.14
  5. Step 5: Solve for x
    x = 61,152,204.14/7,673.88
  6. Step 6: Final answer
    x = 7,968.88

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