Home / 11,518.88-17,310.82-6,839.70

Finding the Fourth Proportional to 11,518.88, 17,310.82 and 6,839.70

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Solution

The fourth proportional to 11,518.88, 17,310.82 and 6,839.70 is: 10,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.88 : 17,310.82 = 6,839.70 : x
  2. Step 2: Convert to fraction form
    11,518.88/17,310.82 = 6,839.70/x
  3. Step 3: Cross multiply
    11,518.88x = 17,310.82 × 6,839.70
  4. Step 4: Simplify right side
    11,518.88x = 118,400,815.55
  5. Step 5: Solve for x
    x = 118,400,815.55/11,518.88
  6. Step 6: Final answer
    x = 10,278.85

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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.