Home / 8,540.21-12,809.85-3,277.74

Finding the Fourth Proportional to 8,540.21, 12,809.85 and 3,277.74

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Solution

The fourth proportional to 8,540.21, 12,809.85 and 3,277.74 is: 4,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.21 : 12,809.85 = 3,277.74 : x
  2. Step 2: Convert to fraction form
    8,540.21/12,809.85 = 3,277.74/x
  3. Step 3: Cross multiply
    8,540.21x = 12,809.85 × 3,277.74
  4. Step 4: Simplify right side
    8,540.21x = 41,987,357.74
  5. Step 5: Solve for x
    x = 41,987,357.74/8,540.21
  6. Step 6: Final answer
    x = 4,916.43

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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.