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Finding the Fourth Proportional to 9.23, 12.74 and 7.30

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Solution

The fourth proportional to 9.23, 12.74 and 7.30 is: 10.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.23 : 12.74 = 7.30 : x
  2. Step 2: Convert to fraction form
    9.23/12.74 = 7.30/x
  3. Step 3: Cross multiply
    9.23x = 12.74 × 7.30
  4. Step 4: Simplify right side
    9.23x = 93.02
  5. Step 5: Solve for x
    x = 93.02/9.23
  6. Step 6: Final answer
    x = 10.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.