Home / 11,311.35-16,962.96-3,913.80

Finding the Fourth Proportional to 11,311.35, 16,962.96 and 3,913.80

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Solution

The fourth proportional to 11,311.35, 16,962.96 and 3,913.80 is: 5,869.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.35 : 16,962.96 = 3,913.80 : x
  2. Step 2: Convert to fraction form
    11,311.35/16,962.96 = 3,913.80/x
  3. Step 3: Cross multiply
    11,311.35x = 16,962.96 × 3,913.80
  4. Step 4: Simplify right side
    11,311.35x = 66,389,632.85
  5. Step 5: Solve for x
    x = 66,389,632.85/11,311.35
  6. Step 6: Final answer
    x = 5,869.29

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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.