Home / 13,785.43-20,682.99-5,021.23

Finding the Fourth Proportional to 13,785.43, 20,682.99 and 5,021.23

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Solution

The fourth proportional to 13,785.43, 20,682.99 and 5,021.23 is: 7,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.43 : 20,682.99 = 5,021.23 : x
  2. Step 2: Convert to fraction form
    13,785.43/20,682.99 = 5,021.23/x
  3. Step 3: Cross multiply
    13,785.43x = 20,682.99 × 5,021.23
  4. Step 4: Simplify right side
    13,785.43x = 103,854,049.88
  5. Step 5: Solve for x
    x = 103,854,049.88/13,785.43
  6. Step 6: Final answer
    x = 7,533.61

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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.