Home / 10,989.73-15,163.19-6,512.71

Finding the Fourth Proportional to 10,989.73, 15,163.19 and 6,512.71

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Solution

The fourth proportional to 10,989.73, 15,163.19 and 6,512.71 is: 8,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.73 : 15,163.19 = 6,512.71 : x
  2. Step 2: Convert to fraction form
    10,989.73/15,163.19 = 6,512.71/x
  3. Step 3: Cross multiply
    10,989.73x = 15,163.19 × 6,512.71
  4. Step 4: Simplify right side
    10,989.73x = 98,753,383.33
  5. Step 5: Solve for x
    x = 98,753,383.33/10,989.73
  6. Step 6: Final answer
    x = 8,985.97

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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.