Home / 7,814.46-11,721.68-3,917.96

Finding the Fourth Proportional to 7,814.46, 11,721.68 and 3,917.96

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Solution

The fourth proportional to 7,814.46, 11,721.68 and 3,917.96 is: 5,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.46 : 11,721.68 = 3,917.96 : x
  2. Step 2: Convert to fraction form
    7,814.46/11,721.68 = 3,917.96/x
  3. Step 3: Cross multiply
    7,814.46x = 11,721.68 × 3,917.96
  4. Step 4: Simplify right side
    7,814.46x = 45,925,024.56
  5. Step 5: Solve for x
    x = 45,925,024.56/7,814.46
  6. Step 6: Final answer
    x = 5,876.93

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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.