Home / 8,122.07-12,181.46-3,738.42

Finding the Fourth Proportional to 8,122.07, 12,181.46 and 3,738.42

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Solution

The fourth proportional to 8,122.07, 12,181.46 and 3,738.42 is: 5,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.07 : 12,181.46 = 3,738.42 : x
  2. Step 2: Convert to fraction form
    8,122.07/12,181.46 = 3,738.42/x
  3. Step 3: Cross multiply
    8,122.07x = 12,181.46 × 3,738.42
  4. Step 4: Simplify right side
    8,122.07x = 45,539,395.00
  5. Step 5: Solve for x
    x = 45,539,395.00/8,122.07
  6. Step 6: Final answer
    x = 5,606.87

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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.