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Finding the Fourth Proportional to 7,992.60, 12,007.26 and 5,040.15

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Solution

The fourth proportional to 7,992.60, 12,007.26 and 5,040.15 is: 7,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.60 : 12,007.26 = 5,040.15 : x
  2. Step 2: Convert to fraction form
    7,992.60/12,007.26 = 5,040.15/x
  3. Step 3: Cross multiply
    7,992.60x = 12,007.26 × 5,040.15
  4. Step 4: Simplify right side
    7,992.60x = 60,518,391.49
  5. Step 5: Solve for x
    x = 60,518,391.49/7,992.60
  6. Step 6: Final answer
    x = 7,571.80

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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.