Home / 11,868.26-16,377.97-6,490.56

Finding the Fourth Proportional to 11,868.26, 16,377.97 and 6,490.56

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Solution

The fourth proportional to 11,868.26, 16,377.97 and 6,490.56 is: 8,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.26 : 16,377.97 = 6,490.56 : x
  2. Step 2: Convert to fraction form
    11,868.26/16,377.97 = 6,490.56/x
  3. Step 3: Cross multiply
    11,868.26x = 16,377.97 × 6,490.56
  4. Step 4: Simplify right side
    11,868.26x = 106,302,134.39
  5. Step 5: Solve for x
    x = 106,302,134.39/11,868.26
  6. Step 6: Final answer
    x = 8,956.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.