Home / 13,814.43-20,721.36-3,953.64

Finding the Fourth Proportional to 13,814.43, 20,721.36 and 3,953.64

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Solution

The fourth proportional to 13,814.43, 20,721.36 and 3,953.64 is: 5,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.43 : 20,721.36 = 3,953.64 : x
  2. Step 2: Convert to fraction form
    13,814.43/20,721.36 = 3,953.64/x
  3. Step 3: Cross multiply
    13,814.43x = 20,721.36 × 3,953.64
  4. Step 4: Simplify right side
    13,814.43x = 81,924,797.75
  5. Step 5: Solve for x
    x = 81,924,797.75/13,814.43
  6. Step 6: Final answer
    x = 5,930.38

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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.