Home / 18,122.20-25,008.12-10,163.92

Finding the Fourth Proportional to 18,122.20, 25,008.12 and 10,163.92

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Solution

The fourth proportional to 18,122.20, 25,008.12 and 10,163.92 is: 14,025.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.20 : 25,008.12 = 10,163.92 : x
  2. Step 2: Convert to fraction form
    18,122.20/25,008.12 = 10,163.92/x
  3. Step 3: Cross multiply
    18,122.20x = 25,008.12 × 10,163.92
  4. Step 4: Simplify right side
    18,122.20x = 254,180,531.03
  5. Step 5: Solve for x
    x = 254,180,531.03/18,122.20
  6. Step 6: Final answer
    x = 14,025.92

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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.