Home / 15,212.16-20,993.22-8,497.56

Finding the Fourth Proportional to 15,212.16, 20,993.22 and 8,497.56

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Solution

The fourth proportional to 15,212.16, 20,993.22 and 8,497.56 is: 11,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.16 : 20,993.22 = 8,497.56 : x
  2. Step 2: Convert to fraction form
    15,212.16/20,993.22 = 8,497.56/x
  3. Step 3: Cross multiply
    15,212.16x = 20,993.22 × 8,497.56
  4. Step 4: Simplify right side
    15,212.16x = 178,391,146.54
  5. Step 5: Solve for x
    x = 178,391,146.54/15,212.16
  6. Step 6: Final answer
    x = 11,726.88

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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.