Home / 14,286.33-21,434.54-6,388.11

Finding the Fourth Proportional to 14,286.33, 21,434.54 and 6,388.11

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Solution

The fourth proportional to 14,286.33, 21,434.54 and 6,388.11 is: 9,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.33 : 21,434.54 = 6,388.11 : x
  2. Step 2: Convert to fraction form
    14,286.33/21,434.54 = 6,388.11/x
  3. Step 3: Cross multiply
    14,286.33x = 21,434.54 × 6,388.11
  4. Step 4: Simplify right side
    14,286.33x = 136,926,167.38
  5. Step 5: Solve for x
    x = 136,926,167.38/14,286.33
  6. Step 6: Final answer
    x = 9,584.42

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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.