Home / 18,950.27-28,413.26-7,864.61

Finding the Fourth Proportional to 18,950.27, 28,413.26 and 7,864.61

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Solution

The fourth proportional to 18,950.27, 28,413.26 and 7,864.61 is: 11,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.27 : 28,413.26 = 7,864.61 : x
  2. Step 2: Convert to fraction form
    18,950.27/28,413.26 = 7,864.61/x
  3. Step 3: Cross multiply
    18,950.27x = 28,413.26 × 7,864.61
  4. Step 4: Simplify right side
    18,950.27x = 223,459,240.44
  5. Step 5: Solve for x
    x = 223,459,240.44/18,950.27
  6. Step 6: Final answer
    x = 11,791.87

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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.