Home / 13,554.73-20,330-3,694.81

Finding the Fourth Proportional to 13,554.73, 20,330 and 3,694.81

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Solution

The fourth proportional to 13,554.73, 20,330 and 3,694.81 is: 5,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.73 : 20,330 = 3,694.81 : x
  2. Step 2: Convert to fraction form
    13,554.73/20,330 = 3,694.81/x
  3. Step 3: Cross multiply
    13,554.73x = 20,330 × 3,694.81
  4. Step 4: Simplify right side
    13,554.73x = 75,115,385.65
  5. Step 5: Solve for x
    x = 75,115,385.65/13,554.73
  6. Step 6: Final answer
    x = 5,541.64

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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.