Home / 8,295.21-11,413.44-7,172.55

Finding the Fourth Proportional to 8,295.21, 11,413.44 and 7,172.55

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Solution

The fourth proportional to 8,295.21, 11,413.44 and 7,172.55 is: 9,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,295.21 : 11,413.44 = 7,172.55 : x
  2. Step 2: Convert to fraction form
    8,295.21/11,413.44 = 7,172.55/x
  3. Step 3: Cross multiply
    8,295.21x = 11,413.44 × 7,172.55
  4. Step 4: Simplify right side
    8,295.21x = 81,863,469.07
  5. Step 5: Solve for x
    x = 81,863,469.07/8,295.21
  6. Step 6: Final answer
    x = 9,868.76

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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.