Home / 18,151.88-27,219.66-8,288.84

Finding the Fourth Proportional to 18,151.88, 27,219.66 and 8,288.84

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Solution

The fourth proportional to 18,151.88, 27,219.66 and 8,288.84 is: 12,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.88 : 27,219.66 = 8,288.84 : x
  2. Step 2: Convert to fraction form
    18,151.88/27,219.66 = 8,288.84/x
  3. Step 3: Cross multiply
    18,151.88x = 27,219.66 × 8,288.84
  4. Step 4: Simplify right side
    18,151.88x = 225,619,406.59
  5. Step 5: Solve for x
    x = 225,619,406.59/18,151.88
  6. Step 6: Final answer
    x = 12,429.53

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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.