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Finding the Fourth Proportional to 12,462.80, 17,198.60 and 6,873.80

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Solution

The fourth proportional to 12,462.80, 17,198.60 and 6,873.80 is: 9,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.80 : 17,198.60 = 6,873.80 : x
  2. Step 2: Convert to fraction form
    12,462.80/17,198.60 = 6,873.80/x
  3. Step 3: Cross multiply
    12,462.80x = 17,198.60 × 6,873.80
  4. Step 4: Simplify right side
    12,462.80x = 118,219,616.32
  5. Step 5: Solve for x
    x = 118,219,616.32/12,462.80
  6. Step 6: Final answer
    x = 9,485.80

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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.