Home / 18,951.62-28,427.49-4,910.64

Finding the Fourth Proportional to 18,951.62, 28,427.49 and 4,910.64

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Solution

The fourth proportional to 18,951.62, 28,427.49 and 4,910.64 is: 7,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.62 : 28,427.49 = 4,910.64 : x
  2. Step 2: Convert to fraction form
    18,951.62/28,427.49 = 4,910.64/x
  3. Step 3: Cross multiply
    18,951.62x = 28,427.49 × 4,910.64
  4. Step 4: Simplify right side
    18,951.62x = 139,597,169.49
  5. Step 5: Solve for x
    x = 139,597,169.49/18,951.62
  6. Step 6: Final answer
    x = 7,365.98

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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.