Home / 11,447.92-17,170.08-3,128.58

Finding the Fourth Proportional to 11,447.92, 17,170.08 and 3,128.58

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Solution

The fourth proportional to 11,447.92, 17,170.08 and 3,128.58 is: 4,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.92 : 17,170.08 = 3,128.58 : x
  2. Step 2: Convert to fraction form
    11,447.92/17,170.08 = 3,128.58/x
  3. Step 3: Cross multiply
    11,447.92x = 17,170.08 × 3,128.58
  4. Step 4: Simplify right side
    11,447.92x = 53,717,974.75
  5. Step 5: Solve for x
    x = 53,717,974.75/11,447.92
  6. Step 6: Final answer
    x = 4,692.38

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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.