Home / 8,206.75-12,299.58-3,991.93

Finding the Fourth Proportional to 8,206.75, 12,299.58 and 3,991.93

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Solution

The fourth proportional to 8,206.75, 12,299.58 and 3,991.93 is: 5,982.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.75 : 12,299.58 = 3,991.93 : x
  2. Step 2: Convert to fraction form
    8,206.75/12,299.58 = 3,991.93/x
  3. Step 3: Cross multiply
    8,206.75x = 12,299.58 × 3,991.93
  4. Step 4: Simplify right side
    8,206.75x = 49,099,062.39
  5. Step 5: Solve for x
    x = 49,099,062.39/8,206.75
  6. Step 6: Final answer
    x = 5,982.77

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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.