Home / 13,189.14-19,785.66-3,827.95

Finding the Fourth Proportional to 13,189.14, 19,785.66 and 3,827.95

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Solution

The fourth proportional to 13,189.14, 19,785.66 and 3,827.95 is: 5,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.14 : 19,785.66 = 3,827.95 : x
  2. Step 2: Convert to fraction form
    13,189.14/19,785.66 = 3,827.95/x
  3. Step 3: Cross multiply
    13,189.14x = 19,785.66 × 3,827.95
  4. Step 4: Simplify right side
    13,189.14x = 75,738,517.20
  5. Step 5: Solve for x
    x = 75,738,517.20/13,189.14
  6. Step 6: Final answer
    x = 5,742.49

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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.