Home / 8,222.55-12,340.20-3,292.68

Finding the Fourth Proportional to 8,222.55, 12,340.20 and 3,292.68

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Solution

The fourth proportional to 8,222.55, 12,340.20 and 3,292.68 is: 4,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.55 : 12,340.20 = 3,292.68 : x
  2. Step 2: Convert to fraction form
    8,222.55/12,340.20 = 3,292.68/x
  3. Step 3: Cross multiply
    8,222.55x = 12,340.20 × 3,292.68
  4. Step 4: Simplify right side
    8,222.55x = 40,632,329.74
  5. Step 5: Solve for x
    x = 40,632,329.74/8,222.55
  6. Step 6: Final answer
    x = 4,941.57

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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.