Home / 11,638.62-17,458.20-3,319.38

Finding the Fourth Proportional to 11,638.62, 17,458.20 and 3,319.38

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Solution

The fourth proportional to 11,638.62, 17,458.20 and 3,319.38 is: 4,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.62 : 17,458.20 = 3,319.38 : x
  2. Step 2: Convert to fraction form
    11,638.62/17,458.20 = 3,319.38/x
  3. Step 3: Cross multiply
    11,638.62x = 17,458.20 × 3,319.38
  4. Step 4: Simplify right side
    11,638.62x = 57,950,399.92
  5. Step 5: Solve for x
    x = 57,950,399.92/11,638.62
  6. Step 6: Final answer
    x = 4,979.15

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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.