Home / 11,910.92-17,867.79-3,145.91

Finding the Fourth Proportional to 11,910.92, 17,867.79 and 3,145.91

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Solution

The fourth proportional to 11,910.92, 17,867.79 and 3,145.91 is: 4,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.92 : 17,867.79 = 3,145.91 : x
  2. Step 2: Convert to fraction form
    11,910.92/17,867.79 = 3,145.91/x
  3. Step 3: Cross multiply
    11,910.92x = 17,867.79 × 3,145.91
  4. Step 4: Simplify right side
    11,910.92x = 56,210,459.24
  5. Step 5: Solve for x
    x = 56,210,459.24/11,910.92
  6. Step 6: Final answer
    x = 4,719.24

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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.