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Finding the Fourth Proportional to 16,784.45, 23,165.90 and 12,798.44

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Solution

The fourth proportional to 16,784.45, 23,165.90 and 12,798.44 is: 17,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,784.45 : 23,165.90 = 12,798.44 : x
  2. Step 2: Convert to fraction form
    16,784.45/23,165.90 = 12,798.44/x
  3. Step 3: Cross multiply
    16,784.45x = 23,165.90 × 12,798.44
  4. Step 4: Simplify right side
    16,784.45x = 296,487,201.37
  5. Step 5: Solve for x
    x = 296,487,201.37/16,784.45
  6. Step 6: Final answer
    x = 17,664.40

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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.