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Finding the Fourth Proportional to 12,396.54, 17,106.21 and 6,807.54

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Solution

The fourth proportional to 12,396.54, 17,106.21 and 6,807.54 is: 9,393.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.54 : 17,106.21 = 6,807.54 : x
  2. Step 2: Convert to fraction form
    12,396.54/17,106.21 = 6,807.54/x
  3. Step 3: Cross multiply
    12,396.54x = 17,106.21 × 6,807.54
  4. Step 4: Simplify right side
    12,396.54x = 116,451,208.82
  5. Step 5: Solve for x
    x = 116,451,208.82/12,396.54
  6. Step 6: Final answer
    x = 9,393.85

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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.