Home / 13,646.99-20,469.36-3,786.41

Finding the Fourth Proportional to 13,646.99, 20,469.36 and 3,786.41

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Solution

The fourth proportional to 13,646.99, 20,469.36 and 3,786.41 is: 5,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.99 : 20,469.36 = 3,786.41 : x
  2. Step 2: Convert to fraction form
    13,646.99/20,469.36 = 3,786.41/x
  3. Step 3: Cross multiply
    13,646.99x = 20,469.36 × 3,786.41
  4. Step 4: Simplify right side
    13,646.99x = 77,505,389.40
  5. Step 5: Solve for x
    x = 77,505,389.40/13,646.99
  6. Step 6: Final answer
    x = 5,679.30

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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.