Home / 8,413.24-12,621.33-3,480.12

Finding the Fourth Proportional to 8,413.24, 12,621.33 and 3,480.12

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Solution

The fourth proportional to 8,413.24, 12,621.33 and 3,480.12 is: 5,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.24 : 12,621.33 = 3,480.12 : x
  2. Step 2: Convert to fraction form
    8,413.24/12,621.33 = 3,480.12/x
  3. Step 3: Cross multiply
    8,413.24x = 12,621.33 × 3,480.12
  4. Step 4: Simplify right side
    8,413.24x = 43,923,742.96
  5. Step 5: Solve for x
    x = 43,923,742.96/8,413.24
  6. Step 6: Final answer
    x = 5,220.79

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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.