Home / 8,066.60-12,091.74-3,390.20

Finding the Fourth Proportional to 8,066.60, 12,091.74 and 3,390.20

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Solution

The fourth proportional to 8,066.60, 12,091.74 and 3,390.20 is: 5,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.60 : 12,091.74 = 3,390.20 : x
  2. Step 2: Convert to fraction form
    8,066.60/12,091.74 = 3,390.20/x
  3. Step 3: Cross multiply
    8,066.60x = 12,091.74 × 3,390.20
  4. Step 4: Simplify right side
    8,066.60x = 40,993,416.95
  5. Step 5: Solve for x
    x = 40,993,416.95/8,066.60
  6. Step 6: Final answer
    x = 5,081.87

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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.