Home / 8,190.44-12,290.42-3,446.25

Finding the Fourth Proportional to 8,190.44, 12,290.42 and 3,446.25

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Solution

The fourth proportional to 8,190.44, 12,290.42 and 3,446.25 is: 5,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.44 : 12,290.42 = 3,446.25 : x
  2. Step 2: Convert to fraction form
    8,190.44/12,290.42 = 3,446.25/x
  3. Step 3: Cross multiply
    8,190.44x = 12,290.42 × 3,446.25
  4. Step 4: Simplify right side
    8,190.44x = 42,355,899.27
  5. Step 5: Solve for x
    x = 42,355,899.27/8,190.44
  6. Step 6: Final answer
    x = 5,171.38

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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.