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Finding the Fourth Proportional to 14.28, 21.43 and 6.27

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Solution

The fourth proportional to 14.28, 21.43 and 6.27 is: 9.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.28 : 21.43 = 6.27 : x
  2. Step 2: Convert to fraction form
    14.28/21.43 = 6.27/x
  3. Step 3: Cross multiply
    14.28x = 21.43 × 6.27
  4. Step 4: Simplify right side
    14.28x = 134.37
  5. Step 5: Solve for x
    x = 134.37/14.28
  6. Step 6: Final answer
    x = 9.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.