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Finding the Fourth Proportional to 7,999.52, 12,012.24 and 4,940.96

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Solution

The fourth proportional to 7,999.52, 12,012.24 and 4,940.96 is: 7,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.52 : 12,012.24 = 4,940.96 : x
  2. Step 2: Convert to fraction form
    7,999.52/12,012.24 = 4,940.96/x
  3. Step 3: Cross multiply
    7,999.52x = 12,012.24 × 4,940.96
  4. Step 4: Simplify right side
    7,999.52x = 59,351,997.35
  5. Step 5: Solve for x
    x = 59,351,997.35/7,999.52
  6. Step 6: Final answer
    x = 7,419.44

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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.