Home / 14,458.78-21,668.73-5,691.34

Finding the Fourth Proportional to 14,458.78, 21,668.73 and 5,691.34

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Solution

The fourth proportional to 14,458.78, 21,668.73 and 5,691.34 is: 8,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.78 : 21,668.73 = 5,691.34 : x
  2. Step 2: Convert to fraction form
    14,458.78/21,668.73 = 5,691.34/x
  3. Step 3: Cross multiply
    14,458.78x = 21,668.73 × 5,691.34
  4. Step 4: Simplify right side
    14,458.78x = 123,324,109.80
  5. Step 5: Solve for x
    x = 123,324,109.80/14,458.78
  6. Step 6: Final answer
    x = 8,529.36

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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.