Home / 18,135.67-27,187.11-6,446.17

Finding the Fourth Proportional to 18,135.67, 27,187.11 and 6,446.17

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Solution

The fourth proportional to 18,135.67, 27,187.11 and 6,446.17 is: 9,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.67 : 27,187.11 = 6,446.17 : x
  2. Step 2: Convert to fraction form
    18,135.67/27,187.11 = 6,446.17/x
  3. Step 3: Cross multiply
    18,135.67x = 27,187.11 × 6,446.17
  4. Step 4: Simplify right side
    18,135.67x = 175,252,732.87
  5. Step 5: Solve for x
    x = 175,252,732.87/18,135.67
  6. Step 6: Final answer
    x = 9,663.43

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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.