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Finding the Fourth Proportional to 9,174.88, 12,661.05 and 5,397.94

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Solution

The fourth proportional to 9,174.88, 12,661.05 and 5,397.94 is: 7,448.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.88 : 12,661.05 = 5,397.94 : x
  2. Step 2: Convert to fraction form
    9,174.88/12,661.05 = 5,397.94/x
  3. Step 3: Cross multiply
    9,174.88x = 12,661.05 × 5,397.94
  4. Step 4: Simplify right side
    9,174.88x = 68,343,588.24
  5. Step 5: Solve for x
    x = 68,343,588.24/9,174.88
  6. Step 6: Final answer
    x = 7,448.99

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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.