Home / 10,989.06-16,486.47-3,198.66

Finding the Fourth Proportional to 10,989.06, 16,486.47 and 3,198.66

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Solution

The fourth proportional to 10,989.06, 16,486.47 and 3,198.66 is: 4,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.06 : 16,486.47 = 3,198.66 : x
  2. Step 2: Convert to fraction form
    10,989.06/16,486.47 = 3,198.66/x
  3. Step 3: Cross multiply
    10,989.06x = 16,486.47 × 3,198.66
  4. Step 4: Simplify right side
    10,989.06x = 52,734,612.13
  5. Step 5: Solve for x
    x = 52,734,612.13/10,989.06
  6. Step 6: Final answer
    x = 4,798.83

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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.