Home / 10,990.56-16,487.46-3,198.36

Finding the Fourth Proportional to 10,990.56, 16,487.46 and 3,198.36

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Solution

The fourth proportional to 10,990.56, 16,487.46 and 3,198.36 is: 4,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.56 : 16,487.46 = 3,198.36 : x
  2. Step 2: Convert to fraction form
    10,990.56/16,487.46 = 3,198.36/x
  3. Step 3: Cross multiply
    10,990.56x = 16,487.46 × 3,198.36
  4. Step 4: Simplify right side
    10,990.56x = 52,732,832.57
  5. Step 5: Solve for x
    x = 52,732,832.57/10,990.56
  6. Step 6: Final answer
    x = 4,798.01

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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.