Home / 12,209.06-16,848.52-6,620.06

Finding the Fourth Proportional to 12,209.06, 16,848.52 and 6,620.06

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Solution

The fourth proportional to 12,209.06, 16,848.52 and 6,620.06 is: 9,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.06 : 16,848.52 = 6,620.06 : x
  2. Step 2: Convert to fraction form
    12,209.06/16,848.52 = 6,620.06/x
  3. Step 3: Cross multiply
    12,209.06x = 16,848.52 × 6,620.06
  4. Step 4: Simplify right side
    12,209.06x = 111,538,238.88
  5. Step 5: Solve for x
    x = 111,538,238.88/12,209.06
  6. Step 6: Final answer
    x = 9,135.69

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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.