Home / 8,133.36-12,194.19-3,450.78

Finding the Fourth Proportional to 8,133.36, 12,194.19 and 3,450.78

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Solution

The fourth proportional to 8,133.36, 12,194.19 and 3,450.78 is: 5,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.36 : 12,194.19 = 3,450.78 : x
  2. Step 2: Convert to fraction form
    8,133.36/12,194.19 = 3,450.78/x
  3. Step 3: Cross multiply
    8,133.36x = 12,194.19 × 3,450.78
  4. Step 4: Simplify right side
    8,133.36x = 42,079,466.97
  5. Step 5: Solve for x
    x = 42,079,466.97/8,133.36
  6. Step 6: Final answer
    x = 5,173.69

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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.