Home / 10,989.24-16,486.28-3,198.66

Finding the Fourth Proportional to 10,989.24, 16,486.28 and 3,198.66

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Solution

The fourth proportional to 10,989.24, 16,486.28 and 3,198.66 is: 4,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.24 : 16,486.28 = 3,198.66 : x
  2. Step 2: Convert to fraction form
    10,989.24/16,486.28 = 3,198.66/x
  3. Step 3: Cross multiply
    10,989.24x = 16,486.28 × 3,198.66
  4. Step 4: Simplify right side
    10,989.24x = 52,733,956.56
  5. Step 5: Solve for x
    x = 52,733,956.56/10,989.24
  6. Step 6: Final answer
    x = 4,798.69

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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.