Home / 14,450.78-19,942.53-8,163.56

Finding the Fourth Proportional to 14,450.78, 19,942.53 and 8,163.56

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Solution

The fourth proportional to 14,450.78, 19,942.53 and 8,163.56 is: 11,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,450.78 : 19,942.53 = 8,163.56 : x
  2. Step 2: Convert to fraction form
    14,450.78/19,942.53 = 8,163.56/x
  3. Step 3: Cross multiply
    14,450.78x = 19,942.53 × 8,163.56
  4. Step 4: Simplify right side
    14,450.78x = 162,802,040.21
  5. Step 5: Solve for x
    x = 162,802,040.21/14,450.78
  6. Step 6: Final answer
    x = 11,265.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.