Home / 18,210.80-27,311.20-11,537.28

Finding the Fourth Proportional to 18,210.80, 27,311.20 and 11,537.28

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Solution

The fourth proportional to 18,210.80, 27,311.20 and 11,537.28 is: 17,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.80 : 27,311.20 = 11,537.28 : x
  2. Step 2: Convert to fraction form
    18,210.80/27,311.20 = 11,537.28/x
  3. Step 3: Cross multiply
    18,210.80x = 27,311.20 × 11,537.28
  4. Step 4: Simplify right side
    18,210.80x = 315,096,961.54
  5. Step 5: Solve for x
    x = 315,096,961.54/18,210.80
  6. Step 6: Final answer
    x = 17,302.75

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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.