Home / 13,868.26-20,806.02-5,103.28

Finding the Fourth Proportional to 13,868.26, 20,806.02 and 5,103.28

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Solution

The fourth proportional to 13,868.26, 20,806.02 and 5,103.28 is: 7,656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.26 : 20,806.02 = 5,103.28 : x
  2. Step 2: Convert to fraction form
    13,868.26/20,806.02 = 5,103.28/x
  3. Step 3: Cross multiply
    13,868.26x = 20,806.02 × 5,103.28
  4. Step 4: Simplify right side
    13,868.26x = 106,178,945.75
  5. Step 5: Solve for x
    x = 106,178,945.75/13,868.26
  6. Step 6: Final answer
    x = 7,656.26

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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.