Home / 11,704.20-16,151.79-6,399

Finding the Fourth Proportional to 11,704.20, 16,151.79 and 6,399

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Solution

The fourth proportional to 11,704.20, 16,151.79 and 6,399 is: 8,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,704.20 : 16,151.79 = 6,399 : x
  2. Step 2: Convert to fraction form
    11,704.20/16,151.79 = 6,399/x
  3. Step 3: Cross multiply
    11,704.20x = 16,151.79 × 6,399
  4. Step 4: Simplify right side
    11,704.20x = 103,355,304.21
  5. Step 5: Solve for x
    x = 103,355,304.21/11,704.20
  6. Step 6: Final answer
    x = 8,830.62

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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.