Home / 13,409.62-20,111.67-5,504.42

Finding the Fourth Proportional to 13,409.62, 20,111.67 and 5,504.42

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Solution

The fourth proportional to 13,409.62, 20,111.67 and 5,504.42 is: 8,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.62 : 20,111.67 = 5,504.42 : x
  2. Step 2: Convert to fraction form
    13,409.62/20,111.67 = 5,504.42/x
  3. Step 3: Cross multiply
    13,409.62x = 20,111.67 × 5,504.42
  4. Step 4: Simplify right side
    13,409.62x = 110,703,128.86
  5. Step 5: Solve for x
    x = 110,703,128.86/13,409.62
  6. Step 6: Final answer
    x = 8,255.50

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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.