Home / 8,212.68-12,324.96-3,283.69

Finding the Fourth Proportional to 8,212.68, 12,324.96 and 3,283.69

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Solution

The fourth proportional to 8,212.68, 12,324.96 and 3,283.69 is: 4,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.68 : 12,324.96 = 3,283.69 : x
  2. Step 2: Convert to fraction form
    8,212.68/12,324.96 = 3,283.69/x
  3. Step 3: Cross multiply
    8,212.68x = 12,324.96 × 3,283.69
  4. Step 4: Simplify right side
    8,212.68x = 40,471,347.90
  5. Step 5: Solve for x
    x = 40,471,347.90/8,212.68
  6. Step 6: Final answer
    x = 4,927.91

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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.