Home / 8,212.05-12,323.07-3,281.04

Finding the Fourth Proportional to 8,212.05, 12,323.07 and 3,281.04

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Solution

The fourth proportional to 8,212.05, 12,323.07 and 3,281.04 is: 4,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.05 : 12,323.07 = 3,281.04 : x
  2. Step 2: Convert to fraction form
    8,212.05/12,323.07 = 3,281.04/x
  3. Step 3: Cross multiply
    8,212.05x = 12,323.07 × 3,281.04
  4. Step 4: Simplify right side
    8,212.05x = 40,432,485.59
  5. Step 5: Solve for x
    x = 40,432,485.59/8,212.05
  6. Step 6: Final answer
    x = 4,923.56

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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.