Home / 13,404.58-20,106.75-3,409.36

Finding the Fourth Proportional to 13,404.58, 20,106.75 and 3,409.36

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Solution

The fourth proportional to 13,404.58, 20,106.75 and 3,409.36 is: 5,114.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.58 : 20,106.75 = 3,409.36 : x
  2. Step 2: Convert to fraction form
    13,404.58/20,106.75 = 3,409.36/x
  3. Step 3: Cross multiply
    13,404.58x = 20,106.75 × 3,409.36
  4. Step 4: Simplify right side
    13,404.58x = 68,551,149.18
  5. Step 5: Solve for x
    x = 68,551,149.18/13,404.58
  6. Step 6: Final answer
    x = 5,114.01

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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.