Home / 11,517.39-17,275.28-7,645.59

Finding the Fourth Proportional to 11,517.39, 17,275.28 and 7,645.59

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Solution

The fourth proportional to 11,517.39, 17,275.28 and 7,645.59 is: 11,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.39 : 17,275.28 = 7,645.59 : x
  2. Step 2: Convert to fraction form
    11,517.39/17,275.28 = 7,645.59/x
  3. Step 3: Cross multiply
    11,517.39x = 17,275.28 × 7,645.59
  4. Step 4: Simplify right side
    11,517.39x = 132,079,669.79
  5. Step 5: Solve for x
    x = 132,079,669.79/11,517.39
  6. Step 6: Final answer
    x = 11,467.85

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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.