Home / 14,212.20-21,318.30-3,823.92

Finding the Fourth Proportional to 14,212.20, 21,318.30 and 3,823.92

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Solution

The fourth proportional to 14,212.20, 21,318.30 and 3,823.92 is: 5,735.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.20 : 21,318.30 = 3,823.92 : x
  2. Step 2: Convert to fraction form
    14,212.20/21,318.30 = 3,823.92/x
  3. Step 3: Cross multiply
    14,212.20x = 21,318.30 × 3,823.92
  4. Step 4: Simplify right side
    14,212.20x = 81,519,473.74
  5. Step 5: Solve for x
    x = 81,519,473.74/14,212.20
  6. Step 6: Final answer
    x = 5,735.88

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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.