Home / 11,754.43-17,631.78-2,989.12

Finding the Fourth Proportional to 11,754.43, 17,631.78 and 2,989.12

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Solution

The fourth proportional to 11,754.43, 17,631.78 and 2,989.12 is: 4,483.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.43 : 17,631.78 = 2,989.12 : x
  2. Step 2: Convert to fraction form
    11,754.43/17,631.78 = 2,989.12/x
  3. Step 3: Cross multiply
    11,754.43x = 17,631.78 × 2,989.12
  4. Step 4: Simplify right side
    11,754.43x = 52,703,506.23
  5. Step 5: Solve for x
    x = 52,703,506.23/11,754.43
  6. Step 6: Final answer
    x = 4,483.71

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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.