Home / 8,212.05-12,318.77-3,532.19

Finding the Fourth Proportional to 8,212.05, 12,318.77 and 3,532.19

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Solution

The fourth proportional to 8,212.05, 12,318.77 and 3,532.19 is: 5,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.05 : 12,318.77 = 3,532.19 : x
  2. Step 2: Convert to fraction form
    8,212.05/12,318.77 = 3,532.19/x
  3. Step 3: Cross multiply
    8,212.05x = 12,318.77 × 3,532.19
  4. Step 4: Simplify right side
    8,212.05x = 43,512,183.44
  5. Step 5: Solve for x
    x = 43,512,183.44/8,212.05
  6. Step 6: Final answer
    x = 5,298.58

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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.