Home / 18,556.98-25,609.68-11,007.78

Finding the Fourth Proportional to 18,556.98, 25,609.68 and 11,007.78

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Solution

The fourth proportional to 18,556.98, 25,609.68 and 11,007.78 is: 15,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.98 : 25,609.68 = 11,007.78 : x
  2. Step 2: Convert to fraction form
    18,556.98/25,609.68 = 11,007.78/x
  3. Step 3: Cross multiply
    18,556.98x = 25,609.68 × 11,007.78
  4. Step 4: Simplify right side
    18,556.98x = 281,905,723.31
  5. Step 5: Solve for x
    x = 281,905,723.31/18,556.98
  6. Step 6: Final answer
    x = 15,191.36

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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.