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Finding the Fourth Proportional to 12,208.97, 16,848.39 and 6,619.97

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Solution

The fourth proportional to 12,208.97, 16,848.39 and 6,619.97 is: 9,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.97 : 16,848.39 = 6,619.97 : x
  2. Step 2: Convert to fraction form
    12,208.97/16,848.39 = 6,619.97/x
  3. Step 3: Cross multiply
    12,208.97x = 16,848.39 × 6,619.97
  4. Step 4: Simplify right side
    12,208.97x = 111,535,836.35
  5. Step 5: Solve for x
    x = 111,535,836.35/12,208.97
  6. Step 6: Final answer
    x = 9,135.56

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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.