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Finding the Fourth Proportional to 7,999.44, 12,001.86 and 5,040.11

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Solution

The fourth proportional to 7,999.44, 12,001.86 and 5,040.11 is: 7,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.44 : 12,001.86 = 5,040.11 : x
  2. Step 2: Convert to fraction form
    7,999.44/12,001.86 = 5,040.11/x
  3. Step 3: Cross multiply
    7,999.44x = 12,001.86 × 5,040.11
  4. Step 4: Simplify right side
    7,999.44x = 60,490,634.60
  5. Step 5: Solve for x
    x = 60,490,634.60/7,999.44
  6. Step 6: Final answer
    x = 7,561.86

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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.