Home / 10,380.26-15,558.78-5,450.42

Finding the Fourth Proportional to 10,380.26, 15,558.78 and 5,450.42

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Solution

The fourth proportional to 10,380.26, 15,558.78 and 5,450.42 is: 8,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.26 : 15,558.78 = 5,450.42 : x
  2. Step 2: Convert to fraction form
    10,380.26/15,558.78 = 5,450.42/x
  3. Step 3: Cross multiply
    10,380.26x = 15,558.78 × 5,450.42
  4. Step 4: Simplify right side
    10,380.26x = 84,801,885.69
  5. Step 5: Solve for x
    x = 84,801,885.69/10,380.26
  6. Step 6: Final answer
    x = 8,169.53

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1.5x scale

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.