Home / 13,758.26-20,640.88-6,368.04

Finding the Fourth Proportional to 13,758.26, 20,640.88 and 6,368.04

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Solution

The fourth proportional to 13,758.26, 20,640.88 and 6,368.04 is: 9,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.26 : 20,640.88 = 6,368.04 : x
  2. Step 2: Convert to fraction form
    13,758.26/20,640.88 = 6,368.04/x
  3. Step 3: Cross multiply
    13,758.26x = 20,640.88 × 6,368.04
  4. Step 4: Simplify right side
    13,758.26x = 131,441,949.48
  5. Step 5: Solve for x
    x = 131,441,949.48/13,758.26
  6. Step 6: Final answer
    x = 9,553.68

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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.