Home / 18,540.18-25,578.45-11,826.09

Finding the Fourth Proportional to 18,540.18, 25,578.45 and 11,826.09

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Solution

The fourth proportional to 18,540.18, 25,578.45 and 11,826.09 is: 16,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.18 : 25,578.45 = 11,826.09 : x
  2. Step 2: Convert to fraction form
    18,540.18/25,578.45 = 11,826.09/x
  3. Step 3: Cross multiply
    18,540.18x = 25,578.45 × 11,826.09
  4. Step 4: Simplify right side
    18,540.18x = 302,493,051.76
  5. Step 5: Solve for x
    x = 302,493,051.76/18,540.18
  6. Step 6: Final answer
    x = 16,315.54

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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.