Home / 8,124.12-12,183.68-4,226.40

Finding the Fourth Proportional to 8,124.12, 12,183.68 and 4,226.40

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Solution

The fourth proportional to 8,124.12, 12,183.68 and 4,226.40 is: 6,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.12 : 12,183.68 = 4,226.40 : x
  2. Step 2: Convert to fraction form
    8,124.12/12,183.68 = 4,226.40/x
  3. Step 3: Cross multiply
    8,124.12x = 12,183.68 × 4,226.40
  4. Step 4: Simplify right side
    8,124.12x = 51,493,105.15
  5. Step 5: Solve for x
    x = 51,493,105.15/8,124.12
  6. Step 6: Final answer
    x = 6,338.30

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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.