Home / 13,849.12-20,792.13-11,782.41

Finding the Fourth Proportional to 13,849.12, 20,792.13 and 11,782.41

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Solution

The fourth proportional to 13,849.12, 20,792.13 and 11,782.41 is: 17,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.12 : 20,792.13 = 11,782.41 : x
  2. Step 2: Convert to fraction form
    13,849.12/20,792.13 = 11,782.41/x
  3. Step 3: Cross multiply
    13,849.12x = 20,792.13 × 11,782.41
  4. Step 4: Simplify right side
    13,849.12x = 244,981,400.43
  5. Step 5: Solve for x
    x = 244,981,400.43/13,849.12
  6. Step 6: Final answer
    x = 17,689.31

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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.