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Finding the Fourth Proportional to 12,796.80, 17,662.68 and 8,548.08

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Solution

The fourth proportional to 12,796.80, 17,662.68 and 8,548.08 is: 11,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.80 : 17,662.68 = 8,548.08 : x
  2. Step 2: Convert to fraction form
    12,796.80/17,662.68 = 8,548.08/x
  3. Step 3: Cross multiply
    12,796.80x = 17,662.68 × 8,548.08
  4. Step 4: Simplify right side
    12,796.80x = 150,982,001.65
  5. Step 5: Solve for x
    x = 150,982,001.65/12,796.80
  6. Step 6: Final answer
    x = 11,798.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.