Home / 18,212.60-25,134.23-11,042.73

Finding the Fourth Proportional to 18,212.60, 25,134.23 and 11,042.73

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Solution

The fourth proportional to 18,212.60, 25,134.23 and 11,042.73 is: 15,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.60 : 25,134.23 = 11,042.73 : x
  2. Step 2: Convert to fraction form
    18,212.60/25,134.23 = 11,042.73/x
  3. Step 3: Cross multiply
    18,212.60x = 25,134.23 × 11,042.73
  4. Step 4: Simplify right side
    18,212.60x = 277,550,460.43
  5. Step 5: Solve for x
    x = 277,550,460.43/18,212.60
  6. Step 6: Final answer
    x = 15,239.48

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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.