Home / 18,556.35-25,603.89-11,837.70

Finding the Fourth Proportional to 18,556.35, 25,603.89 and 11,837.70

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Solution

The fourth proportional to 18,556.35, 25,603.89 and 11,837.70 is: 16,333.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.35 : 25,603.89 = 11,837.70 : x
  2. Step 2: Convert to fraction form
    18,556.35/25,603.89 = 11,837.70/x
  3. Step 3: Cross multiply
    18,556.35x = 25,603.89 × 11,837.70
  4. Step 4: Simplify right side
    18,556.35x = 303,091,168.65
  5. Step 5: Solve for x
    x = 303,091,168.65/18,556.35
  6. Step 6: Final answer
    x = 16,333.56

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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.