Home / 13,716.76-20,575.90-3,855.28

Finding the Fourth Proportional to 13,716.76, 20,575.90 and 3,855.28

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Solution

The fourth proportional to 13,716.76, 20,575.90 and 3,855.28 is: 5,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.76 : 20,575.90 = 3,855.28 : x
  2. Step 2: Convert to fraction form
    13,716.76/20,575.90 = 3,855.28/x
  3. Step 3: Cross multiply
    13,716.76x = 20,575.90 × 3,855.28
  4. Step 4: Simplify right side
    13,716.76x = 79,325,855.75
  5. Step 5: Solve for x
    x = 79,325,855.75/13,716.76
  6. Step 6: Final answer
    x = 5,783.13

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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.