Home / 8,815.72-13,227.90-3,621.64

Finding the Fourth Proportional to 8,815.72, 13,227.90 and 3,621.64

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Solution

The fourth proportional to 8,815.72, 13,227.90 and 3,621.64 is: 5,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.72 : 13,227.90 = 3,621.64 : x
  2. Step 2: Convert to fraction form
    8,815.72/13,227.90 = 3,621.64/x
  3. Step 3: Cross multiply
    8,815.72x = 13,227.90 × 3,621.64
  4. Step 4: Simplify right side
    8,815.72x = 47,906,691.76
  5. Step 5: Solve for x
    x = 47,906,691.76/8,815.72
  6. Step 6: Final answer
    x = 5,434.23

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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.