Home / 10,879.11-15,013.35-6,163.29

Finding the Fourth Proportional to 10,879.11, 15,013.35 and 6,163.29

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Solution

The fourth proportional to 10,879.11, 15,013.35 and 6,163.29 is: 8,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.11 : 15,013.35 = 6,163.29 : x
  2. Step 2: Convert to fraction form
    10,879.11/15,013.35 = 6,163.29/x
  3. Step 3: Cross multiply
    10,879.11x = 15,013.35 × 6,163.29
  4. Step 4: Simplify right side
    10,879.11x = 92,531,629.92
  5. Step 5: Solve for x
    x = 92,531,629.92/10,879.11
  6. Step 6: Final answer
    x = 8,505.44

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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.