Home / 18,540.78-25,576.16-11,814.54

Finding the Fourth Proportional to 18,540.78, 25,576.16 and 11,814.54

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Solution

The fourth proportional to 18,540.78, 25,576.16 and 11,814.54 is: 16,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.78 : 25,576.16 = 11,814.54 : x
  2. Step 2: Convert to fraction form
    18,540.78/25,576.16 = 11,814.54/x
  3. Step 3: Cross multiply
    18,540.78x = 25,576.16 × 11,814.54
  4. Step 4: Simplify right side
    18,540.78x = 302,170,565.37
  5. Step 5: Solve for x
    x = 302,170,565.37/18,540.78
  6. Step 6: Final answer
    x = 16,297.62

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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.