Home / 18,122.22-25,002.20-11,408.27

Finding the Fourth Proportional to 18,122.22, 25,002.20 and 11,408.27

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Solution

The fourth proportional to 18,122.22, 25,002.20 and 11,408.27 is: 15,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.22 : 25,002.20 = 11,408.27 : x
  2. Step 2: Convert to fraction form
    18,122.22/25,002.20 = 11,408.27/x
  3. Step 3: Cross multiply
    18,122.22x = 25,002.20 × 11,408.27
  4. Step 4: Simplify right side
    18,122.22x = 285,231,751.70
  5. Step 5: Solve for x
    x = 285,231,751.70/18,122.22
  6. Step 6: Final answer
    x = 15,739.34

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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.