Home / 8,413.45-12,621.53-2,568.69

Finding the Fourth Proportional to 8,413.45, 12,621.53 and 2,568.69

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Solution

The fourth proportional to 8,413.45, 12,621.53 and 2,568.69 is: 3,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.45 : 12,621.53 = 2,568.69 : x
  2. Step 2: Convert to fraction form
    8,413.45/12,621.53 = 2,568.69/x
  3. Step 3: Cross multiply
    8,413.45x = 12,621.53 × 2,568.69
  4. Step 4: Simplify right side
    8,413.45x = 32,420,797.90
  5. Step 5: Solve for x
    x = 32,420,797.90/8,413.45
  6. Step 6: Final answer
    x = 3,853.45

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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.