Home / 11,378.36-17,067.54-3,587.78

Finding the Fourth Proportional to 11,378.36, 17,067.54 and 3,587.78

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Solution

The fourth proportional to 11,378.36, 17,067.54 and 3,587.78 is: 5,381.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.36 : 17,067.54 = 3,587.78 : x
  2. Step 2: Convert to fraction form
    11,378.36/17,067.54 = 3,587.78/x
  3. Step 3: Cross multiply
    11,378.36x = 17,067.54 × 3,587.78
  4. Step 4: Simplify right side
    11,378.36x = 61,234,578.66
  5. Step 5: Solve for x
    x = 61,234,578.66/11,378.36
  6. Step 6: Final answer
    x = 5,381.67

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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.