Home / 11,450.68-17,174.42-3,128.69

Finding the Fourth Proportional to 11,450.68, 17,174.42 and 3,128.69

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Solution

The fourth proportional to 11,450.68, 17,174.42 and 3,128.69 is: 4,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,450.68 : 17,174.42 = 3,128.69 : x
  2. Step 2: Convert to fraction form
    11,450.68/17,174.42 = 3,128.69/x
  3. Step 3: Cross multiply
    11,450.68x = 17,174.42 × 3,128.69
  4. Step 4: Simplify right side
    11,450.68x = 53,733,475.13
  5. Step 5: Solve for x
    x = 53,733,475.13/11,450.68
  6. Step 6: Final answer
    x = 4,692.60

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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.