Home / 11,163.20-15,403.88-6,625.16

Finding the Fourth Proportional to 11,163.20, 15,403.88 and 6,625.16

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Solution

The fourth proportional to 11,163.20, 15,403.88 and 6,625.16 is: 9,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.20 : 15,403.88 = 6,625.16 : x
  2. Step 2: Convert to fraction form
    11,163.20/15,403.88 = 6,625.16/x
  3. Step 3: Cross multiply
    11,163.20x = 15,403.88 × 6,625.16
  4. Step 4: Simplify right side
    11,163.20x = 102,053,169.62
  5. Step 5: Solve for x
    x = 102,053,169.62/11,163.20
  6. Step 6: Final answer
    x = 9,141.93

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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.