Home / 18,651.24-27,981.60-6,964.56

Finding the Fourth Proportional to 18,651.24, 27,981.60 and 6,964.56

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Solution

The fourth proportional to 18,651.24, 27,981.60 and 6,964.56 is: 10,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.24 : 27,981.60 = 6,964.56 : x
  2. Step 2: Convert to fraction form
    18,651.24/27,981.60 = 6,964.56/x
  3. Step 3: Cross multiply
    18,651.24x = 27,981.60 × 6,964.56
  4. Step 4: Simplify right side
    18,651.24x = 194,879,532.10
  5. Step 5: Solve for x
    x = 194,879,532.10/18,651.24
  6. Step 6: Final answer
    x = 10,448.61

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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.