Home / 14,321.09-21,479.16-3,791.18

Finding the Fourth Proportional to 14,321.09, 21,479.16 and 3,791.18

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Solution

The fourth proportional to 14,321.09, 21,479.16 and 3,791.18 is: 5,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.09 : 21,479.16 = 3,791.18 : x
  2. Step 2: Convert to fraction form
    14,321.09/21,479.16 = 3,791.18/x
  3. Step 3: Cross multiply
    14,321.09x = 21,479.16 × 3,791.18
  4. Step 4: Simplify right side
    14,321.09x = 81,431,361.81
  5. Step 5: Solve for x
    x = 81,431,361.81/14,321.09
  6. Step 6: Final answer
    x = 5,686.11

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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.