Home / 18,255.40-27,383.33-6,408.70

Finding the Fourth Proportional to 18,255.40, 27,383.33 and 6,408.70

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Solution

The fourth proportional to 18,255.40, 27,383.33 and 6,408.70 is: 9,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.40 : 27,383.33 = 6,408.70 : x
  2. Step 2: Convert to fraction form
    18,255.40/27,383.33 = 6,408.70/x
  3. Step 3: Cross multiply
    18,255.40x = 27,383.33 × 6,408.70
  4. Step 4: Simplify right side
    18,255.40x = 175,491,546.97
  5. Step 5: Solve for x
    x = 175,491,546.97/18,255.40
  6. Step 6: Final answer
    x = 9,613.13

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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.