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Finding the Fourth Proportional to 9,174.05, 12,663.20 and 5,397.02

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Solution

The fourth proportional to 9,174.05, 12,663.20 and 5,397.02 is: 7,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.05 : 12,663.20 = 5,397.02 : x
  2. Step 2: Convert to fraction form
    9,174.05/12,663.20 = 5,397.02/x
  3. Step 3: Cross multiply
    9,174.05x = 12,663.20 × 5,397.02
  4. Step 4: Simplify right side
    9,174.05x = 68,343,516.68
  5. Step 5: Solve for x
    x = 68,343,516.68/9,174.05
  6. Step 6: Final answer
    x = 7,449.66

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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.