Home / 14,274.28-21,388.38-11,678.44

Finding the Fourth Proportional to 14,274.28, 21,388.38 and 11,678.44

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Solution

The fourth proportional to 14,274.28, 21,388.38 and 11,678.44 is: 17,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.28 : 21,388.38 = 11,678.44 : x
  2. Step 2: Convert to fraction form
    14,274.28/21,388.38 = 11,678.44/x
  3. Step 3: Cross multiply
    14,274.28x = 21,388.38 × 11,678.44
  4. Step 4: Simplify right side
    14,274.28x = 249,782,912.53
  5. Step 5: Solve for x
    x = 249,782,912.53/14,274.28
  6. Step 6: Final answer
    x = 17,498.81

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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.