Home / 11,509.22-15,942.88-11,275.94

Finding the Fourth Proportional to 11,509.22, 15,942.88 and 11,275.94

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Solution

The fourth proportional to 11,509.22, 15,942.88 and 11,275.94 is: 15,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.22 : 15,942.88 = 11,275.94 : x
  2. Step 2: Convert to fraction form
    11,509.22/15,942.88 = 11,275.94/x
  3. Step 3: Cross multiply
    11,509.22x = 15,942.88 × 11,275.94
  4. Step 4: Simplify right side
    11,509.22x = 179,770,901.93
  5. Step 5: Solve for x
    x = 179,770,901.93/11,509.22
  6. Step 6: Final answer
    x = 15,619.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.