Home / 18,099.72-27,149.70-4,951.80

Finding the Fourth Proportional to 18,099.72, 27,149.70 and 4,951.80

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Solution

The fourth proportional to 18,099.72, 27,149.70 and 4,951.80 is: 7,427.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.72 : 27,149.70 = 4,951.80 : x
  2. Step 2: Convert to fraction form
    18,099.72/27,149.70 = 4,951.80/x
  3. Step 3: Cross multiply
    18,099.72x = 27,149.70 × 4,951.80
  4. Step 4: Simplify right side
    18,099.72x = 134,439,884.46
  5. Step 5: Solve for x
    x = 134,439,884.46/18,099.72
  6. Step 6: Final answer
    x = 7,427.73

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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.