Home / 8,113.16-12,174.60-2,919.44

Finding the Fourth Proportional to 8,113.16, 12,174.60 and 2,919.44

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Solution

The fourth proportional to 8,113.16, 12,174.60 and 2,919.44 is: 4,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.16 : 12,174.60 = 2,919.44 : x
  2. Step 2: Convert to fraction form
    8,113.16/12,174.60 = 2,919.44/x
  3. Step 3: Cross multiply
    8,113.16x = 12,174.60 × 2,919.44
  4. Step 4: Simplify right side
    8,113.16x = 35,542,953.35
  5. Step 5: Solve for x
    x = 35,542,953.35/8,113.16
  6. Step 6: Final answer
    x = 4,380.90

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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.