Home / 13,529.80-20,267.70-11,906.20

Finding the Fourth Proportional to 13,529.80, 20,267.70 and 11,906.20

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Solution

The fourth proportional to 13,529.80, 20,267.70 and 11,906.20 is: 17,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.80 : 20,267.70 = 11,906.20 : x
  2. Step 2: Convert to fraction form
    13,529.80/20,267.70 = 11,906.20/x
  3. Step 3: Cross multiply
    13,529.80x = 20,267.70 × 11,906.20
  4. Step 4: Simplify right side
    13,529.80x = 241,311,289.74
  5. Step 5: Solve for x
    x = 241,311,289.74/13,529.80
  6. Step 6: Final answer
    x = 17,835.54

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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.