Home / 11,180.14-16,775-3,785.38

Finding the Fourth Proportional to 11,180.14, 16,775 and 3,785.38

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Solution

The fourth proportional to 11,180.14, 16,775 and 3,785.38 is: 5,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.14 : 16,775 = 3,785.38 : x
  2. Step 2: Convert to fraction form
    11,180.14/16,775 = 3,785.38/x
  3. Step 3: Cross multiply
    11,180.14x = 16,775 × 3,785.38
  4. Step 4: Simplify right side
    11,180.14x = 63,499,749.50
  5. Step 5: Solve for x
    x = 63,499,749.50/11,180.14
  6. Step 6: Final answer
    x = 5,679.69

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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.