Home / 8,091.75-12,138.94-2,393.30

Finding the Fourth Proportional to 8,091.75, 12,138.94 and 2,393.30

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Solution

The fourth proportional to 8,091.75, 12,138.94 and 2,393.30 is: 3,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.75 : 12,138.94 = 2,393.30 : x
  2. Step 2: Convert to fraction form
    8,091.75/12,138.94 = 2,393.30/x
  3. Step 3: Cross multiply
    8,091.75x = 12,138.94 × 2,393.30
  4. Step 4: Simplify right side
    8,091.75x = 29,052,065.16
  5. Step 5: Solve for x
    x = 29,052,065.16/8,091.75
  6. Step 6: Final answer
    x = 3,590.33

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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.