Home / 18,559.20-25,626.60-12,190.80

Finding the Fourth Proportional to 18,559.20, 25,626.60 and 12,190.80

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Solution

The fourth proportional to 18,559.20, 25,626.60 and 12,190.80 is: 16,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.20 : 25,626.60 = 12,190.80 : x
  2. Step 2: Convert to fraction form
    18,559.20/25,626.60 = 12,190.80/x
  3. Step 3: Cross multiply
    18,559.20x = 25,626.60 × 12,190.80
  4. Step 4: Simplify right side
    18,559.20x = 312,408,755.28
  5. Step 5: Solve for x
    x = 312,408,755.28/18,559.20
  6. Step 6: Final answer
    x = 16,833.09

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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.