Home / 7,917.20-11,876.48-2,073.81

Finding the Fourth Proportional to 7,917.20, 11,876.48 and 2,073.81

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Solution

The fourth proportional to 7,917.20, 11,876.48 and 2,073.81 is: 3,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.20 : 11,876.48 = 2,073.81 : x
  2. Step 2: Convert to fraction form
    7,917.20/11,876.48 = 2,073.81/x
  3. Step 3: Cross multiply
    7,917.20x = 11,876.48 × 2,073.81
  4. Step 4: Simplify right side
    7,917.20x = 24,629,562.99
  5. Step 5: Solve for x
    x = 24,629,562.99/7,917.20
  6. Step 6: Final answer
    x = 3,110.89

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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.