Home / 18,609.08-25,680.83-10,111.37

Finding the Fourth Proportional to 18,609.08, 25,680.83 and 10,111.37

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Solution

The fourth proportional to 18,609.08, 25,680.83 and 10,111.37 is: 13,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.08 : 25,680.83 = 10,111.37 : x
  2. Step 2: Convert to fraction form
    18,609.08/25,680.83 = 10,111.37/x
  3. Step 3: Cross multiply
    18,609.08x = 25,680.83 × 10,111.37
  4. Step 4: Simplify right side
    18,609.08x = 259,668,195.08
  5. Step 5: Solve for x
    x = 259,668,195.08/18,609.08
  6. Step 6: Final answer
    x = 13,953.85

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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.