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Finding the Fourth Proportional to 18,161.42, 27,242.09 and 4,834.42

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Solution

The fourth proportional to 18,161.42, 27,242.09 and 4,834.42 is: 7,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.42 : 27,242.09 = 4,834.42 : x
  2. Step 2: Convert to fraction form
    18,161.42/27,242.09 = 4,834.42/x
  3. Step 3: Cross multiply
    18,161.42x = 27,242.09 × 4,834.42
  4. Step 4: Simplify right side
    18,161.42x = 131,699,636.63
  5. Step 5: Solve for x
    x = 131,699,636.63/18,161.42
  6. Step 6: Final answer
    x = 7,251.62

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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.