Home / 10,879.39-15,012.97-6,163.57

Finding the Fourth Proportional to 10,879.39, 15,012.97 and 6,163.57

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Solution

The fourth proportional to 10,879.39, 15,012.97 and 6,163.57 is: 8,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.39 : 15,012.97 = 6,163.57 : x
  2. Step 2: Convert to fraction form
    10,879.39/15,012.97 = 6,163.57/x
  3. Step 3: Cross multiply
    10,879.39x = 15,012.97 × 6,163.57
  4. Step 4: Simplify right side
    10,879.39x = 92,533,491.50
  5. Step 5: Solve for x
    x = 92,533,491.50/10,879.39
  6. Step 6: Final answer
    x = 8,505.39

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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.