Home / 13,789.26-20,690.72-5,469.09

Finding the Fourth Proportional to 13,789.26, 20,690.72 and 5,469.09

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Solution

The fourth proportional to 13,789.26, 20,690.72 and 5,469.09 is: 8,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.26 : 20,690.72 = 5,469.09 : x
  2. Step 2: Convert to fraction form
    13,789.26/20,690.72 = 5,469.09/x
  3. Step 3: Cross multiply
    13,789.26x = 20,690.72 × 5,469.09
  4. Step 4: Simplify right side
    13,789.26x = 113,159,382.50
  5. Step 5: Solve for x
    x = 113,159,382.50/13,789.26
  6. Step 6: Final answer
    x = 8,206.34

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1.5x scale

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.