Home / 18,540.99-25,589.93-11,828.70

Finding the Fourth Proportional to 18,540.99, 25,589.93 and 11,828.70

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Solution

The fourth proportional to 18,540.99, 25,589.93 and 11,828.70 is: 16,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.99 : 25,589.93 = 11,828.70 : x
  2. Step 2: Convert to fraction form
    18,540.99/25,589.93 = 11,828.70/x
  3. Step 3: Cross multiply
    18,540.99x = 25,589.93 × 11,828.70
  4. Step 4: Simplify right side
    18,540.99x = 302,695,545.85
  5. Step 5: Solve for x
    x = 302,695,545.85/18,540.99
  6. Step 6: Final answer
    x = 16,325.75

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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.