Home / 8,626.41-12,942.35-3,079.63

Finding the Fourth Proportional to 8,626.41, 12,942.35 and 3,079.63

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Solution

The fourth proportional to 8,626.41, 12,942.35 and 3,079.63 is: 4,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.41 : 12,942.35 = 3,079.63 : x
  2. Step 2: Convert to fraction form
    8,626.41/12,942.35 = 3,079.63/x
  3. Step 3: Cross multiply
    8,626.41x = 12,942.35 × 3,079.63
  4. Step 4: Simplify right side
    8,626.41x = 39,857,649.33
  5. Step 5: Solve for x
    x = 39,857,649.33/8,626.41
  6. Step 6: Final answer
    x = 4,620.42

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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.