Home / 13,716.08-20,575.42-3,855.35

Finding the Fourth Proportional to 13,716.08, 20,575.42 and 3,855.35

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Solution

The fourth proportional to 13,716.08, 20,575.42 and 3,855.35 is: 5,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.08 : 20,575.42 = 3,855.35 : x
  2. Step 2: Convert to fraction form
    13,716.08/20,575.42 = 3,855.35/x
  3. Step 3: Cross multiply
    13,716.08x = 20,575.42 × 3,855.35
  4. Step 4: Simplify right side
    13,716.08x = 79,325,371.56
  5. Step 5: Solve for x
    x = 79,325,371.56/13,716.08
  6. Step 6: Final answer
    x = 5,783.38

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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.