Home / 13,409.76-20,115.62-3,548.97

Finding the Fourth Proportional to 13,409.76, 20,115.62 and 3,548.97

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Solution

The fourth proportional to 13,409.76, 20,115.62 and 3,548.97 is: 5,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.76 : 20,115.62 = 3,548.97 : x
  2. Step 2: Convert to fraction form
    13,409.76/20,115.62 = 3,548.97/x
  3. Step 3: Cross multiply
    13,409.76x = 20,115.62 × 3,548.97
  4. Step 4: Simplify right side
    13,409.76x = 71,389,731.91
  5. Step 5: Solve for x
    x = 71,389,731.91/13,409.76
  6. Step 6: Final answer
    x = 5,323.71

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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.