Home / 8,198.64-12,288.35-3,521.18

Finding the Fourth Proportional to 8,198.64, 12,288.35 and 3,521.18

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Solution

The fourth proportional to 8,198.64, 12,288.35 and 3,521.18 is: 5,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.64 : 12,288.35 = 3,521.18 : x
  2. Step 2: Convert to fraction form
    8,198.64/12,288.35 = 3,521.18/x
  3. Step 3: Cross multiply
    8,198.64x = 12,288.35 × 3,521.18
  4. Step 4: Simplify right side
    8,198.64x = 43,269,413.21
  5. Step 5: Solve for x
    x = 43,269,413.21/8,198.64
  6. Step 6: Final answer
    x = 5,277.63

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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.