Home / 8,181.77-12,261.85-2,982.65

Finding the Fourth Proportional to 8,181.77, 12,261.85 and 2,982.65

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Solution

The fourth proportional to 8,181.77, 12,261.85 and 2,982.65 is: 4,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.77 : 12,261.85 = 2,982.65 : x
  2. Step 2: Convert to fraction form
    8,181.77/12,261.85 = 2,982.65/x
  3. Step 3: Cross multiply
    8,181.77x = 12,261.85 × 2,982.65
  4. Step 4: Simplify right side
    8,181.77x = 36,572,738.14
  5. Step 5: Solve for x
    x = 36,572,738.14/8,181.77
  6. Step 6: Final answer
    x = 4,470.03

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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.