Home / 18,708.22-25,819.83-11,902.87

Finding the Fourth Proportional to 18,708.22, 25,819.83 and 11,902.87

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Solution

The fourth proportional to 18,708.22, 25,819.83 and 11,902.87 is: 16,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.22 : 25,819.83 = 11,902.87 : x
  2. Step 2: Convert to fraction form
    18,708.22/25,819.83 = 11,902.87/x
  3. Step 3: Cross multiply
    18,708.22x = 25,819.83 × 11,902.87
  4. Step 4: Simplify right side
    18,708.22x = 307,330,079.91
  5. Step 5: Solve for x
    x = 307,330,079.91/18,708.22
  6. Step 6: Final answer
    x = 16,427.54

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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.