Home / 18,358.20-27,540.18-10,971

Finding the Fourth Proportional to 18,358.20, 27,540.18 and 10,971

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Solution

The fourth proportional to 18,358.20, 27,540.18 and 10,971 is: 16,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.20 : 27,540.18 = 10,971 : x
  2. Step 2: Convert to fraction form
    18,358.20/27,540.18 = 10,971/x
  3. Step 3: Cross multiply
    18,358.20x = 27,540.18 × 10,971
  4. Step 4: Simplify right side
    18,358.20x = 302,143,314.78
  5. Step 5: Solve for x
    x = 302,143,314.78/18,358.20
  6. Step 6: Final answer
    x = 16,458.22

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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.