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Finding the Fourth Proportional to 7,520.93, 10,378.76 and 4,163.68

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Solution

The fourth proportional to 7,520.93, 10,378.76 and 4,163.68 is: 5,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.93 : 10,378.76 = 4,163.68 : x
  2. Step 2: Convert to fraction form
    7,520.93/10,378.76 = 4,163.68/x
  3. Step 3: Cross multiply
    7,520.93x = 10,378.76 × 4,163.68
  4. Step 4: Simplify right side
    7,520.93x = 43,213,835.44
  5. Step 5: Solve for x
    x = 43,213,835.44/7,520.93
  6. Step 6: Final answer
    x = 5,745.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.