Home / 8,621.16-12,936.60-3,427.44

Finding the Fourth Proportional to 8,621.16, 12,936.60 and 3,427.44

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Solution

The fourth proportional to 8,621.16, 12,936.60 and 3,427.44 is: 5,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.16 : 12,936.60 = 3,427.44 : x
  2. Step 2: Convert to fraction form
    8,621.16/12,936.60 = 3,427.44/x
  3. Step 3: Cross multiply
    8,621.16x = 12,936.60 × 3,427.44
  4. Step 4: Simplify right side
    8,621.16x = 44,339,420.30
  5. Step 5: Solve for x
    x = 44,339,420.30/8,621.16
  6. Step 6: Final answer
    x = 5,143.09

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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.