Home / 13,704.92-20,544.42-5,390.27

Finding the Fourth Proportional to 13,704.92, 20,544.42 and 5,390.27

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Solution

The fourth proportional to 13,704.92, 20,544.42 and 5,390.27 is: 8,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.92 : 20,544.42 = 5,390.27 : x
  2. Step 2: Convert to fraction form
    13,704.92/20,544.42 = 5,390.27/x
  3. Step 3: Cross multiply
    13,704.92x = 20,544.42 × 5,390.27
  4. Step 4: Simplify right side
    13,704.92x = 110,739,970.79
  5. Step 5: Solve for x
    x = 110,739,970.79/13,704.92
  6. Step 6: Final answer
    x = 8,080.31

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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.