Home / 13,717.62-20,573.24-3,857.85

Finding the Fourth Proportional to 13,717.62, 20,573.24 and 3,857.85

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Solution

The fourth proportional to 13,717.62, 20,573.24 and 3,857.85 is: 5,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.62 : 20,573.24 = 3,857.85 : x
  2. Step 2: Convert to fraction form
    13,717.62/20,573.24 = 3,857.85/x
  3. Step 3: Cross multiply
    13,717.62x = 20,573.24 × 3,857.85
  4. Step 4: Simplify right side
    13,717.62x = 79,368,454.64
  5. Step 5: Solve for x
    x = 79,368,454.64/13,717.62
  6. Step 6: Final answer
    x = 5,785.88

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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.