Home / 14,212.10-21,318.13-3,823.86

Finding the Fourth Proportional to 14,212.10, 21,318.13 and 3,823.86

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Solution

The fourth proportional to 14,212.10, 21,318.13 and 3,823.86 is: 5,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.10 : 21,318.13 = 3,823.86 : x
  2. Step 2: Convert to fraction form
    14,212.10/21,318.13 = 3,823.86/x
  3. Step 3: Cross multiply
    14,212.10x = 21,318.13 × 3,823.86
  4. Step 4: Simplify right side
    14,212.10x = 81,517,544.58
  5. Step 5: Solve for x
    x = 81,517,544.58/14,212.10
  6. Step 6: Final answer
    x = 5,735.78

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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.