Home / 18,376.20-27,548.10-10,972.80

Finding the Fourth Proportional to 18,376.20, 27,548.10 and 10,972.80

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Solution

The fourth proportional to 18,376.20, 27,548.10 and 10,972.80 is: 16,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.20 : 27,548.10 = 10,972.80 : x
  2. Step 2: Convert to fraction form
    18,376.20/27,548.10 = 10,972.80/x
  3. Step 3: Cross multiply
    18,376.20x = 27,548.10 × 10,972.80
  4. Step 4: Simplify right side
    18,376.20x = 302,279,791.68
  5. Step 5: Solve for x
    x = 302,279,791.68/18,376.20
  6. Step 6: Final answer
    x = 16,449.53

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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.