Home / 7,972.26-11,953.25-3,812.18

Finding the Fourth Proportional to 7,972.26, 11,953.25 and 3,812.18

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Solution

The fourth proportional to 7,972.26, 11,953.25 and 3,812.18 is: 5,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.26 : 11,953.25 = 3,812.18 : x
  2. Step 2: Convert to fraction form
    7,972.26/11,953.25 = 3,812.18/x
  3. Step 3: Cross multiply
    7,972.26x = 11,953.25 × 3,812.18
  4. Step 4: Simplify right side
    7,972.26x = 45,567,876.05
  5. Step 5: Solve for x
    x = 45,567,876.05/7,972.26
  6. Step 6: Final answer
    x = 5,715.81

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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.