Home / 8,413.44-12,621.66-3,480.39

Finding the Fourth Proportional to 8,413.44, 12,621.66 and 3,480.39

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Solution

The fourth proportional to 8,413.44, 12,621.66 and 3,480.39 is: 5,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.44 : 12,621.66 = 3,480.39 : x
  2. Step 2: Convert to fraction form
    8,413.44/12,621.66 = 3,480.39/x
  3. Step 3: Cross multiply
    8,413.44x = 12,621.66 × 3,480.39
  4. Step 4: Simplify right side
    8,413.44x = 43,928,299.25
  5. Step 5: Solve for x
    x = 43,928,299.25/8,413.44
  6. Step 6: Final answer
    x = 5,221.21

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1.5x scale

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.