Home / 11,890.68-17,836.20-3,568.92

Finding the Fourth Proportional to 11,890.68, 17,836.20 and 3,568.92

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Solution

The fourth proportional to 11,890.68, 17,836.20 and 3,568.92 is: 5,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.68 : 17,836.20 = 3,568.92 : x
  2. Step 2: Convert to fraction form
    11,890.68/17,836.20 = 3,568.92/x
  3. Step 3: Cross multiply
    11,890.68x = 17,836.20 × 3,568.92
  4. Step 4: Simplify right side
    11,890.68x = 63,655,970.90
  5. Step 5: Solve for x
    x = 63,655,970.90/11,890.68
  6. Step 6: Final answer
    x = 5,353.43

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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.