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Finding the Fourth Proportional to 9,168.88, 12,663.36 and 6,196.98

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Solution

The fourth proportional to 9,168.88, 12,663.36 and 6,196.98 is: 8,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.88 : 12,663.36 = 6,196.98 : x
  2. Step 2: Convert to fraction form
    9,168.88/12,663.36 = 6,196.98/x
  3. Step 3: Cross multiply
    9,168.88x = 12,663.36 × 6,196.98
  4. Step 4: Simplify right side
    9,168.88x = 78,474,588.65
  5. Step 5: Solve for x
    x = 78,474,588.65/9,168.88
  6. Step 6: Final answer
    x = 8,558.80

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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.