Home / 14,286.07-21,429.39-4,291.21

Finding the Fourth Proportional to 14,286.07, 21,429.39 and 4,291.21

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Solution

The fourth proportional to 14,286.07, 21,429.39 and 4,291.21 is: 6,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.07 : 21,429.39 = 4,291.21 : x
  2. Step 2: Convert to fraction form
    14,286.07/21,429.39 = 4,291.21/x
  3. Step 3: Cross multiply
    14,286.07x = 21,429.39 × 4,291.21
  4. Step 4: Simplify right side
    14,286.07x = 91,958,012.66
  5. Step 5: Solve for x
    x = 91,958,012.66/14,286.07
  6. Step 6: Final answer
    x = 6,436.90

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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.