Home / 11,884.07-16,399.82-6,578.78

Finding the Fourth Proportional to 11,884.07, 16,399.82 and 6,578.78

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Solution

The fourth proportional to 11,884.07, 16,399.82 and 6,578.78 is: 9,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884.07 : 16,399.82 = 6,578.78 : x
  2. Step 2: Convert to fraction form
    11,884.07/16,399.82 = 6,578.78/x
  3. Step 3: Cross multiply
    11,884.07x = 16,399.82 × 6,578.78
  4. Step 4: Simplify right side
    11,884.07x = 107,890,692.93
  5. Step 5: Solve for x
    x = 107,890,692.93/11,884.07
  6. Step 6: Final answer
    x = 9,078.60

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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.