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Finding the Fourth Proportional to 12,183.68, 16,812.54 and 6,879.02

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Solution

The fourth proportional to 12,183.68, 16,812.54 and 6,879.02 is: 9,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.68 : 16,812.54 = 6,879.02 : x
  2. Step 2: Convert to fraction form
    12,183.68/16,812.54 = 6,879.02/x
  3. Step 3: Cross multiply
    12,183.68x = 16,812.54 × 6,879.02
  4. Step 4: Simplify right side
    12,183.68x = 115,653,798.91
  5. Step 5: Solve for x
    x = 115,653,798.91/12,183.68
  6. Step 6: Final answer
    x = 9,492.52

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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.