Home / 7,917.40-11,874.48-2,723.68

Finding the Fourth Proportional to 7,917.40, 11,874.48 and 2,723.68

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Solution

The fourth proportional to 7,917.40, 11,874.48 and 2,723.68 is: 4,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.40 : 11,874.48 = 2,723.68 : x
  2. Step 2: Convert to fraction form
    7,917.40/11,874.48 = 2,723.68/x
  3. Step 3: Cross multiply
    7,917.40x = 11,874.48 × 2,723.68
  4. Step 4: Simplify right side
    7,917.40x = 32,342,283.69
  5. Step 5: Solve for x
    x = 32,342,283.69/7,917.40
  6. Step 6: Final answer
    x = 4,084.96

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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.