Home / 11,286.38-16,920.39-4,717.46

Finding the Fourth Proportional to 11,286.38, 16,920.39 and 4,717.46

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Solution

The fourth proportional to 11,286.38, 16,920.39 and 4,717.46 is: 7,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.38 : 16,920.39 = 4,717.46 : x
  2. Step 2: Convert to fraction form
    11,286.38/16,920.39 = 4,717.46/x
  3. Step 3: Cross multiply
    11,286.38x = 16,920.39 × 4,717.46
  4. Step 4: Simplify right side
    11,286.38x = 79,821,263.01
  5. Step 5: Solve for x
    x = 79,821,263.01/11,286.38
  6. Step 6: Final answer
    x = 7,072.35

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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.