Home / 19,640.16-27,096.80-11,141.37

Finding the Fourth Proportional to 19,640.16, 27,096.80 and 11,141.37

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Solution

The fourth proportional to 19,640.16, 27,096.80 and 11,141.37 is: 15,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.16 : 27,096.80 = 11,141.37 : x
  2. Step 2: Convert to fraction form
    19,640.16/27,096.80 = 11,141.37/x
  3. Step 3: Cross multiply
    19,640.16x = 27,096.80 × 11,141.37
  4. Step 4: Simplify right side
    19,640.16x = 301,895,418.91
  5. Step 5: Solve for x
    x = 301,895,418.91/19,640.16
  6. Step 6: Final answer
    x = 15,371.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.