Home / 18,186-25,100.76-11,116.56

Finding the Fourth Proportional to 18,186, 25,100.76 and 11,116.56

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Solution

The fourth proportional to 18,186, 25,100.76 and 11,116.56 is: 15,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186 : 25,100.76 = 11,116.56 : x
  2. Step 2: Convert to fraction form
    18,186/25,100.76 = 11,116.56/x
  3. Step 3: Cross multiply
    18,186x = 25,100.76 × 11,116.56
  4. Step 4: Simplify right side
    18,186x = 279,034,104.59
  5. Step 5: Solve for x
    x = 279,034,104.59/18,186
  6. Step 6: Final answer
    x = 15,343.35

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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.