Home / 8,222.40-12,333.60-3,292.80

Finding the Fourth Proportional to 8,222.40, 12,333.60 and 3,292.80

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Solution

The fourth proportional to 8,222.40, 12,333.60 and 3,292.80 is: 4,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.40 : 12,333.60 = 3,292.80 : x
  2. Step 2: Convert to fraction form
    8,222.40/12,333.60 = 3,292.80/x
  3. Step 3: Cross multiply
    8,222.40x = 12,333.60 × 3,292.80
  4. Step 4: Simplify right side
    8,222.40x = 40,612,078.08
  5. Step 5: Solve for x
    x = 40,612,078.08/8,222.40
  6. Step 6: Final answer
    x = 4,939.20

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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.