Home / 12,793.20-19,173.60-6,945

Finding the Fourth Proportional to 12,793.20, 19,173.60 and 6,945

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Solution

The fourth proportional to 12,793.20, 19,173.60 and 6,945 is: 10,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.20 : 19,173.60 = 6,945 : x
  2. Step 2: Convert to fraction form
    12,793.20/19,173.60 = 6,945/x
  3. Step 3: Cross multiply
    12,793.20x = 19,173.60 × 6,945
  4. Step 4: Simplify right side
    12,793.20x = 133,160,652.00
  5. Step 5: Solve for x
    x = 133,160,652.00/12,793.20
  6. Step 6: Final answer
    x = 10,408.71

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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.