Home / 10,977.83-15,149.84-6,198.78

Finding the Fourth Proportional to 10,977.83, 15,149.84 and 6,198.78

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Solution

The fourth proportional to 10,977.83, 15,149.84 and 6,198.78 is: 8,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.83 : 15,149.84 = 6,198.78 : x
  2. Step 2: Convert to fraction form
    10,977.83/15,149.84 = 6,198.78/x
  3. Step 3: Cross multiply
    10,977.83x = 15,149.84 × 6,198.78
  4. Step 4: Simplify right side
    10,977.83x = 93,910,465.80
  5. Step 5: Solve for x
    x = 93,910,465.80/10,977.83
  6. Step 6: Final answer
    x = 8,554.56

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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.