Home / 8,119.78-12,183.39-4,416.46

Finding the Fourth Proportional to 8,119.78, 12,183.39 and 4,416.46

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Solution

The fourth proportional to 8,119.78, 12,183.39 and 4,416.46 is: 6,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.78 : 12,183.39 = 4,416.46 : x
  2. Step 2: Convert to fraction form
    8,119.78/12,183.39 = 4,416.46/x
  3. Step 3: Cross multiply
    8,119.78x = 12,183.39 × 4,416.46
  4. Step 4: Simplify right side
    8,119.78x = 53,807,454.60
  5. Step 5: Solve for x
    x = 53,807,454.60/8,119.78
  6. Step 6: Final answer
    x = 6,626.71

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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.