Home / 11,812.68-17,715.76-3,491.82

Finding the Fourth Proportional to 11,812.68, 17,715.76 and 3,491.82

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Solution

The fourth proportional to 11,812.68, 17,715.76 and 3,491.82 is: 5,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.68 : 17,715.76 = 3,491.82 : x
  2. Step 2: Convert to fraction form
    11,812.68/17,715.76 = 3,491.82/x
  3. Step 3: Cross multiply
    11,812.68x = 17,715.76 × 3,491.82
  4. Step 4: Simplify right side
    11,812.68x = 61,860,245.08
  5. Step 5: Solve for x
    x = 61,860,245.08/11,812.68
  6. Step 6: Final answer
    x = 5,236.77

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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.