Home / 10,940.28-16,418.98-7,631.84

Finding the Fourth Proportional to 10,940.28, 16,418.98 and 7,631.84

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Solution

The fourth proportional to 10,940.28, 16,418.98 and 7,631.84 is: 11,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.28 : 16,418.98 = 7,631.84 : x
  2. Step 2: Convert to fraction form
    10,940.28/16,418.98 = 7,631.84/x
  3. Step 3: Cross multiply
    10,940.28x = 16,418.98 × 7,631.84
  4. Step 4: Simplify right side
    10,940.28x = 125,307,028.32
  5. Step 5: Solve for x
    x = 125,307,028.32/10,940.28
  6. Step 6: Final answer
    x = 11,453.73

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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.