Home / 13,906.50-20,857.92-5,020.92

Finding the Fourth Proportional to 13,906.50, 20,857.92 and 5,020.92

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Solution

The fourth proportional to 13,906.50, 20,857.92 and 5,020.92 is: 7,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.50 : 20,857.92 = 5,020.92 : x
  2. Step 2: Convert to fraction form
    13,906.50/20,857.92 = 5,020.92/x
  3. Step 3: Cross multiply
    13,906.50x = 20,857.92 × 5,020.92
  4. Step 4: Simplify right side
    13,906.50x = 104,725,947.69
  5. Step 5: Solve for x
    x = 104,725,947.69/13,906.50
  6. Step 6: Final answer
    x = 7,530.72

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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.