Home / 18,536.91-25,579.31-10,981.88

Finding the Fourth Proportional to 18,536.91, 25,579.31 and 10,981.88

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Solution

The fourth proportional to 18,536.91, 25,579.31 and 10,981.88 is: 15,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.91 : 25,579.31 = 10,981.88 : x
  2. Step 2: Convert to fraction form
    18,536.91/25,579.31 = 10,981.88/x
  3. Step 3: Cross multiply
    18,536.91x = 25,579.31 × 10,981.88
  4. Step 4: Simplify right side
    18,536.91x = 280,908,912.90
  5. Step 5: Solve for x
    x = 280,908,912.90/18,536.91
  6. Step 6: Final answer
    x = 15,154.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.