Home / 10,311.23-15,467.97-3,289.61

Finding the Fourth Proportional to 10,311.23, 15,467.97 and 3,289.61

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Solution

The fourth proportional to 10,311.23, 15,467.97 and 3,289.61 is: 4,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.23 : 15,467.97 = 3,289.61 : x
  2. Step 2: Convert to fraction form
    10,311.23/15,467.97 = 3,289.61/x
  3. Step 3: Cross multiply
    10,311.23x = 15,467.97 × 3,289.61
  4. Step 4: Simplify right side
    10,311.23x = 50,883,588.79
  5. Step 5: Solve for x
    x = 50,883,588.79/10,311.23
  6. Step 6: Final answer
    x = 4,934.77

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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.