Home / 18,086.41-27,171.20-12,761.84

Finding the Fourth Proportional to 18,086.41, 27,171.20 and 12,761.84

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Solution

The fourth proportional to 18,086.41, 27,171.20 and 12,761.84 is: 19,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.41 : 27,171.20 = 12,761.84 : x
  2. Step 2: Convert to fraction form
    18,086.41/27,171.20 = 12,761.84/x
  3. Step 3: Cross multiply
    18,086.41x = 27,171.20 × 12,761.84
  4. Step 4: Simplify right side
    18,086.41x = 346,754,511.13
  5. Step 5: Solve for x
    x = 346,754,511.13/18,086.41
  6. Step 6: Final answer
    x = 19,172.11

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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.