Home / 13,427.22-18,529.52-8,120.52

Finding the Fourth Proportional to 13,427.22, 18,529.52 and 8,120.52

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Solution

The fourth proportional to 13,427.22, 18,529.52 and 8,120.52 is: 11,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.22 : 18,529.52 = 8,120.52 : x
  2. Step 2: Convert to fraction form
    13,427.22/18,529.52 = 8,120.52/x
  3. Step 3: Cross multiply
    13,427.22x = 18,529.52 × 8,120.52
  4. Step 4: Simplify right side
    13,427.22x = 150,469,337.75
  5. Step 5: Solve for x
    x = 150,469,337.75/13,427.22
  6. Step 6: Final answer
    x = 11,206.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.