Home / 10,821.55-16,222.53-4,245.97

Finding the Fourth Proportional to 10,821.55, 16,222.53 and 4,245.97

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Solution

The fourth proportional to 10,821.55, 16,222.53 and 4,245.97 is: 6,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.55 : 16,222.53 = 4,245.97 : x
  2. Step 2: Convert to fraction form
    10,821.55/16,222.53 = 4,245.97/x
  3. Step 3: Cross multiply
    10,821.55x = 16,222.53 × 4,245.97
  4. Step 4: Simplify right side
    10,821.55x = 68,880,375.70
  5. Step 5: Solve for x
    x = 68,880,375.70/10,821.55
  6. Step 6: Final answer
    x = 6,365.11

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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.