Home / 18,186.50-25,097.64-11,111.42

Finding the Fourth Proportional to 18,186.50, 25,097.64 and 11,111.42

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Solution

The fourth proportional to 18,186.50, 25,097.64 and 11,111.42 is: 15,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.50 : 25,097.64 = 11,111.42 : x
  2. Step 2: Convert to fraction form
    18,186.50/25,097.64 = 11,111.42/x
  3. Step 3: Cross multiply
    18,186.50x = 25,097.64 × 11,111.42
  4. Step 4: Simplify right side
    18,186.50x = 278,870,419.05
  5. Step 5: Solve for x
    x = 278,870,419.05/18,186.50
  6. Step 6: Final answer
    x = 15,333.92

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1.5x scale

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.