Home / 12,449.06-17,179.68-6,860.06

Finding the Fourth Proportional to 12,449.06, 17,179.68 and 6,860.06

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Solution

The fourth proportional to 12,449.06, 17,179.68 and 6,860.06 is: 9,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.06 : 17,179.68 = 6,860.06 : x
  2. Step 2: Convert to fraction form
    12,449.06/17,179.68 = 6,860.06/x
  3. Step 3: Cross multiply
    12,449.06x = 17,179.68 × 6,860.06
  4. Step 4: Simplify right side
    12,449.06x = 117,853,635.58
  5. Step 5: Solve for x
    x = 117,853,635.58/12,449.06
  6. Step 6: Final answer
    x = 9,466.87

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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.