Home / 8,311.91-12,464.22-3,114.14

Finding the Fourth Proportional to 8,311.91, 12,464.22 and 3,114.14

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Solution

The fourth proportional to 8,311.91, 12,464.22 and 3,114.14 is: 4,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.91 : 12,464.22 = 3,114.14 : x
  2. Step 2: Convert to fraction form
    8,311.91/12,464.22 = 3,114.14/x
  3. Step 3: Cross multiply
    8,311.91x = 12,464.22 × 3,114.14
  4. Step 4: Simplify right side
    8,311.91x = 38,815,263.75
  5. Step 5: Solve for x
    x = 38,815,263.75/8,311.91
  6. Step 6: Final answer
    x = 4,669.84

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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.