Home / 18,211.32-27,318.50-5,063.81

Finding the Fourth Proportional to 18,211.32, 27,318.50 and 5,063.81

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Solution

The fourth proportional to 18,211.32, 27,318.50 and 5,063.81 is: 7,596.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.32 : 27,318.50 = 5,063.81 : x
  2. Step 2: Convert to fraction form
    18,211.32/27,318.50 = 5,063.81/x
  3. Step 3: Cross multiply
    18,211.32x = 27,318.50 × 5,063.81
  4. Step 4: Simplify right side
    18,211.32x = 138,335,531.57
  5. Step 5: Solve for x
    x = 138,335,531.57/18,211.32
  6. Step 6: Final answer
    x = 7,596.13

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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.