Home / 11,441.12-17,161.64-7,517.12

Finding the Fourth Proportional to 11,441.12, 17,161.64 and 7,517.12

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Solution

The fourth proportional to 11,441.12, 17,161.64 and 7,517.12 is: 11,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.12 : 17,161.64 = 7,517.12 : x
  2. Step 2: Convert to fraction form
    11,441.12/17,161.64 = 7,517.12/x
  3. Step 3: Cross multiply
    11,441.12x = 17,161.64 × 7,517.12
  4. Step 4: Simplify right side
    11,441.12x = 129,006,107.28
  5. Step 5: Solve for x
    x = 129,006,107.28/11,441.12
  6. Step 6: Final answer
    x = 11,275.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.