Home / 13,752.09-20,611.19-5,423.73

Finding the Fourth Proportional to 13,752.09, 20,611.19 and 5,423.73

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Solution

The fourth proportional to 13,752.09, 20,611.19 and 5,423.73 is: 8,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.09 : 20,611.19 = 5,423.73 : x
  2. Step 2: Convert to fraction form
    13,752.09/20,611.19 = 5,423.73/x
  3. Step 3: Cross multiply
    13,752.09x = 20,611.19 × 5,423.73
  4. Step 4: Simplify right side
    13,752.09x = 111,789,529.54
  5. Step 5: Solve for x
    x = 111,789,529.54/13,752.09
  6. Step 6: Final answer
    x = 8,128.91

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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.