Home / 11,143.67-16,704.26-6,986.60

Finding the Fourth Proportional to 11,143.67, 16,704.26 and 6,986.60

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Solution

The fourth proportional to 11,143.67, 16,704.26 and 6,986.60 is: 10,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.67 : 16,704.26 = 6,986.60 : x
  2. Step 2: Convert to fraction form
    11,143.67/16,704.26 = 6,986.60/x
  3. Step 3: Cross multiply
    11,143.67x = 16,704.26 × 6,986.60
  4. Step 4: Simplify right side
    11,143.67x = 116,705,947.98
  5. Step 5: Solve for x
    x = 116,705,947.98/11,143.67
  6. Step 6: Final answer
    x = 10,472.85

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1.5x scale

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.