Home / 13,868.24-20,797.80-6,938

Finding the Fourth Proportional to 13,868.24, 20,797.80 and 6,938

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Solution

The fourth proportional to 13,868.24, 20,797.80 and 6,938 is: 10,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.24 : 20,797.80 = 6,938 : x
  2. Step 2: Convert to fraction form
    13,868.24/20,797.80 = 6,938/x
  3. Step 3: Cross multiply
    13,868.24x = 20,797.80 × 6,938
  4. Step 4: Simplify right side
    13,868.24x = 144,295,136.40
  5. Step 5: Solve for x
    x = 144,295,136.40/13,868.24
  6. Step 6: Final answer
    x = 10,404.72

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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.