Home / 7,836.76-11,757.08-3,889.87

Finding the Fourth Proportional to 7,836.76, 11,757.08 and 3,889.87

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Solution

The fourth proportional to 7,836.76, 11,757.08 and 3,889.87 is: 5,835.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.76 : 11,757.08 = 3,889.87 : x
  2. Step 2: Convert to fraction form
    7,836.76/11,757.08 = 3,889.87/x
  3. Step 3: Cross multiply
    7,836.76x = 11,757.08 × 3,889.87
  4. Step 4: Simplify right side
    7,836.76x = 45,733,493.11
  5. Step 5: Solve for x
    x = 45,733,493.11/7,836.76
  6. Step 6: Final answer
    x = 5,835.77

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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.