Home / 13,406.43-20,107.21-5,083.71

Finding the Fourth Proportional to 13,406.43, 20,107.21 and 5,083.71

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Solution

The fourth proportional to 13,406.43, 20,107.21 and 5,083.71 is: 7,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.43 : 20,107.21 = 5,083.71 : x
  2. Step 2: Convert to fraction form
    13,406.43/20,107.21 = 5,083.71/x
  3. Step 3: Cross multiply
    13,406.43x = 20,107.21 × 5,083.71
  4. Step 4: Simplify right side
    13,406.43x = 102,219,098.59
  5. Step 5: Solve for x
    x = 102,219,098.59/13,406.43
  6. Step 6: Final answer
    x = 7,624.63

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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.