Home / 10,855.78-16,286.04-4,615.96

Finding the Fourth Proportional to 10,855.78, 16,286.04 and 4,615.96

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Solution

The fourth proportional to 10,855.78, 16,286.04 and 4,615.96 is: 6,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.78 : 16,286.04 = 4,615.96 : x
  2. Step 2: Convert to fraction form
    10,855.78/16,286.04 = 4,615.96/x
  3. Step 3: Cross multiply
    10,855.78x = 16,286.04 × 4,615.96
  4. Step 4: Simplify right side
    10,855.78x = 75,175,709.20
  5. Step 5: Solve for x
    x = 75,175,709.20/10,855.78
  6. Step 6: Final answer
    x = 6,924.95

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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.