Home / 8,091.36-12,144.60-4,198.50

Finding the Fourth Proportional to 8,091.36, 12,144.60 and 4,198.50

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Solution

The fourth proportional to 8,091.36, 12,144.60 and 4,198.50 is: 6,301.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.36 : 12,144.60 = 4,198.50 : x
  2. Step 2: Convert to fraction form
    8,091.36/12,144.60 = 4,198.50/x
  3. Step 3: Cross multiply
    8,091.36x = 12,144.60 × 4,198.50
  4. Step 4: Simplify right side
    8,091.36x = 50,989,103.10
  5. Step 5: Solve for x
    x = 50,989,103.10/8,091.36
  6. Step 6: Final answer
    x = 6,301.67

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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.