Home / 10,989.11-16,486.38-3,197.94

Finding the Fourth Proportional to 10,989.11, 16,486.38 and 3,197.94

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Solution

The fourth proportional to 10,989.11, 16,486.38 and 3,197.94 is: 4,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.11 : 16,486.38 = 3,197.94 : x
  2. Step 2: Convert to fraction form
    10,989.11/16,486.38 = 3,197.94/x
  3. Step 3: Cross multiply
    10,989.11x = 16,486.38 × 3,197.94
  4. Step 4: Simplify right side
    10,989.11x = 52,722,454.06
  5. Step 5: Solve for x
    x = 52,722,454.06/10,989.11
  6. Step 6: Final answer
    x = 4,797.70

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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.