Home / 18,238.66-25,165.85-11,066.61

Finding the Fourth Proportional to 18,238.66, 25,165.85 and 11,066.61

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Solution

The fourth proportional to 18,238.66, 25,165.85 and 11,066.61 is: 15,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.66 : 25,165.85 = 11,066.61 : x
  2. Step 2: Convert to fraction form
    18,238.66/25,165.85 = 11,066.61/x
  3. Step 3: Cross multiply
    18,238.66x = 25,165.85 × 11,066.61
  4. Step 4: Simplify right side
    18,238.66x = 278,500,647.27
  5. Step 5: Solve for x
    x = 278,500,647.27/18,238.66
  6. Step 6: Final answer
    x = 15,269.80

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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.