Home / 8,110.20-12,171.48-3,181.08

Finding the Fourth Proportional to 8,110.20, 12,171.48 and 3,181.08

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Solution

The fourth proportional to 8,110.20, 12,171.48 and 3,181.08 is: 4,774.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.20 : 12,171.48 = 3,181.08 : x
  2. Step 2: Convert to fraction form
    8,110.20/12,171.48 = 3,181.08/x
  3. Step 3: Cross multiply
    8,110.20x = 12,171.48 × 3,181.08
  4. Step 4: Simplify right side
    8,110.20x = 38,718,451.60
  5. Step 5: Solve for x
    x = 38,718,451.60/8,110.20
  6. Step 6: Final answer
    x = 4,774.04

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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.