Home / 11,318.49-16,974.28-3,921.22

Finding the Fourth Proportional to 11,318.49, 16,974.28 and 3,921.22

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Solution

The fourth proportional to 11,318.49, 16,974.28 and 3,921.22 is: 5,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.49 : 16,974.28 = 3,921.22 : x
  2. Step 2: Convert to fraction form
    11,318.49/16,974.28 = 3,921.22/x
  3. Step 3: Cross multiply
    11,318.49x = 16,974.28 × 3,921.22
  4. Step 4: Simplify right side
    11,318.49x = 66,559,934.83
  5. Step 5: Solve for x
    x = 66,559,934.83/11,318.49
  6. Step 6: Final answer
    x = 5,880.64

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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.