Home / 10,245.82-15,367.05-3,670.78

Finding the Fourth Proportional to 10,245.82, 15,367.05 and 3,670.78

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Solution

The fourth proportional to 10,245.82, 15,367.05 and 3,670.78 is: 5,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.82 : 15,367.05 = 3,670.78 : x
  2. Step 2: Convert to fraction form
    10,245.82/15,367.05 = 3,670.78/x
  3. Step 3: Cross multiply
    10,245.82x = 15,367.05 × 3,670.78
  4. Step 4: Simplify right side
    10,245.82x = 56,409,059.80
  5. Step 5: Solve for x
    x = 56,409,059.80/10,245.82
  6. Step 6: Final answer
    x = 5,505.57

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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.