Home / 12,215.58-16,857.59-6,626.62

Finding the Fourth Proportional to 12,215.58, 16,857.59 and 6,626.62

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Solution

The fourth proportional to 12,215.58, 16,857.59 and 6,626.62 is: 9,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.58 : 16,857.59 = 6,626.62 : x
  2. Step 2: Convert to fraction form
    12,215.58/16,857.59 = 6,626.62/x
  3. Step 3: Cross multiply
    12,215.58x = 16,857.59 × 6,626.62
  4. Step 4: Simplify right side
    12,215.58x = 111,708,843.05
  5. Step 5: Solve for x
    x = 111,708,843.05/12,215.58
  6. Step 6: Final answer
    x = 9,144.78

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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.