Home / 18,519.93-25,565.94-11,814.75

Finding the Fourth Proportional to 18,519.93, 25,565.94 and 11,814.75

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Solution

The fourth proportional to 18,519.93, 25,565.94 and 11,814.75 is: 16,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.93 : 25,565.94 = 11,814.75 : x
  2. Step 2: Convert to fraction form
    18,519.93/25,565.94 = 11,814.75/x
  3. Step 3: Cross multiply
    18,519.93x = 25,565.94 × 11,814.75
  4. Step 4: Simplify right side
    18,519.93x = 302,055,189.62
  5. Step 5: Solve for x
    x = 302,055,189.62/18,519.93
  6. Step 6: Final answer
    x = 16,309.74

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Half scale
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Double scale
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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.