Home / 15,877.73-21,911.37-9,163.64

Finding the Fourth Proportional to 15,877.73, 21,911.37 and 9,163.64

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Solution

The fourth proportional to 15,877.73, 21,911.37 and 9,163.64 is: 12,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.73 : 21,911.37 = 9,163.64 : x
  2. Step 2: Convert to fraction form
    15,877.73/21,911.37 = 9,163.64/x
  3. Step 3: Cross multiply
    15,877.73x = 21,911.37 × 9,163.64
  4. Step 4: Simplify right side
    15,877.73x = 200,787,906.59
  5. Step 5: Solve for x
    x = 200,787,906.59/15,877.73
  6. Step 6: Final answer
    x = 12,645.88

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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.