Home / 10,865.39-16,297.91-3,469.80

Finding the Fourth Proportional to 10,865.39, 16,297.91 and 3,469.80

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Solution

The fourth proportional to 10,865.39, 16,297.91 and 3,469.80 is: 5,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.39 : 16,297.91 = 3,469.80 : x
  2. Step 2: Convert to fraction form
    10,865.39/16,297.91 = 3,469.80/x
  3. Step 3: Cross multiply
    10,865.39x = 16,297.91 × 3,469.80
  4. Step 4: Simplify right side
    10,865.39x = 56,550,488.12
  5. Step 5: Solve for x
    x = 56,550,488.12/10,865.39
  6. Step 6: Final answer
    x = 5,204.64

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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.