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Finding the Fourth Proportional to 7,761.11, 10,704.47 and 5,375.07

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Solution

The fourth proportional to 7,761.11, 10,704.47 and 5,375.07 is: 7,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.11 : 10,704.47 = 5,375.07 : x
  2. Step 2: Convert to fraction form
    7,761.11/10,704.47 = 5,375.07/x
  3. Step 3: Cross multiply
    7,761.11x = 10,704.47 × 5,375.07
  4. Step 4: Simplify right side
    7,761.11x = 57,537,248.69
  5. Step 5: Solve for x
    x = 57,537,248.69/7,761.11
  6. Step 6: Final answer
    x = 7,413.54

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1.5x scale

Why These Related Problems?

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