Home / 8,431.28-12,648.41-2,883.32

Finding the Fourth Proportional to 8,431.28, 12,648.41 and 2,883.32

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Solution

The fourth proportional to 8,431.28, 12,648.41 and 2,883.32 is: 4,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.28 : 12,648.41 = 2,883.32 : x
  2. Step 2: Convert to fraction form
    8,431.28/12,648.41 = 2,883.32/x
  3. Step 3: Cross multiply
    8,431.28x = 12,648.41 × 2,883.32
  4. Step 4: Simplify right side
    8,431.28x = 36,469,413.52
  5. Step 5: Solve for x
    x = 36,469,413.52/8,431.28
  6. Step 6: Final answer
    x = 4,325.49

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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.