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Finding the Fourth Proportional to 18,154.62, 27,231.95 and 5,674.71

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Solution

The fourth proportional to 18,154.62, 27,231.95 and 5,674.71 is: 8,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.62 : 27,231.95 = 5,674.71 : x
  2. Step 2: Convert to fraction form
    18,154.62/27,231.95 = 5,674.71/x
  3. Step 3: Cross multiply
    18,154.62x = 27,231.95 × 5,674.71
  4. Step 4: Simplify right side
    18,154.62x = 154,533,418.98
  5. Step 5: Solve for x
    x = 154,533,418.98/18,154.62
  6. Step 6: Final answer
    x = 8,512.07

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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.