Home / 18,117.36-27,163.08-8,251.56

Finding the Fourth Proportional to 18,117.36, 27,163.08 and 8,251.56

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Solution

The fourth proportional to 18,117.36, 27,163.08 and 8,251.56 is: 12,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.36 : 27,163.08 = 8,251.56 : x
  2. Step 2: Convert to fraction form
    18,117.36/27,163.08 = 8,251.56/x
  3. Step 3: Cross multiply
    18,117.36x = 27,163.08 × 8,251.56
  4. Step 4: Simplify right side
    18,117.36x = 224,137,784.40
  5. Step 5: Solve for x
    x = 224,137,784.40/18,117.36
  6. Step 6: Final answer
    x = 12,371.44

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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.