Home / 11,575.78-17,366.10-3,785.20

Finding the Fourth Proportional to 11,575.78, 17,366.10 and 3,785.20

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Solution

The fourth proportional to 11,575.78, 17,366.10 and 3,785.20 is: 5,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,575.78 : 17,366.10 = 3,785.20 : x
  2. Step 2: Convert to fraction form
    11,575.78/17,366.10 = 3,785.20/x
  3. Step 3: Cross multiply
    11,575.78x = 17,366.10 × 3,785.20
  4. Step 4: Simplify right side
    11,575.78x = 65,734,161.72
  5. Step 5: Solve for x
    x = 65,734,161.72/11,575.78
  6. Step 6: Final answer
    x = 5,678.59

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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.