Home / 11,704.20-16,151.78-6,668.40

Finding the Fourth Proportional to 11,704.20, 16,151.78 and 6,668.40

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Solution

The fourth proportional to 11,704.20, 16,151.78 and 6,668.40 is: 9,202.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,704.20 : 16,151.78 = 6,668.40 : x
  2. Step 2: Convert to fraction form
    11,704.20/16,151.78 = 6,668.40/x
  3. Step 3: Cross multiply
    11,704.20x = 16,151.78 × 6,668.40
  4. Step 4: Simplify right side
    11,704.20x = 107,706,529.75
  5. Step 5: Solve for x
    x = 107,706,529.75/11,704.20
  6. Step 6: Final answer
    x = 9,202.38

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1.5x scale

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.