Home / 18,191.19-27,265.86-8,331.51

Finding the Fourth Proportional to 18,191.19, 27,265.86 and 8,331.51

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Solution

The fourth proportional to 18,191.19, 27,265.86 and 8,331.51 is: 12,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.19 : 27,265.86 = 8,331.51 : x
  2. Step 2: Convert to fraction form
    18,191.19/27,265.86 = 8,331.51/x
  3. Step 3: Cross multiply
    18,191.19x = 27,265.86 × 8,331.51
  4. Step 4: Simplify right side
    18,191.19x = 227,165,785.25
  5. Step 5: Solve for x
    x = 227,165,785.25/18,191.19
  6. Step 6: Final answer
    x = 12,487.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.