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Finding the Fourth Proportional to 9.37, 14.14 and 8.90

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Solution

The fourth proportional to 9.37, 14.14 and 8.90 is: 13.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.37 : 14.14 = 8.90 : x
  2. Step 2: Convert to fraction form
    9.37/14.14 = 8.90/x
  3. Step 3: Cross multiply
    9.37x = 14.14 × 8.90
  4. Step 4: Simplify right side
    9.37x = 125.79
  5. Step 5: Solve for x
    x = 125.79/9.37
  6. Step 6: Final answer
    x = 13.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.