Home / 12,608.28-18,914.13-4,286.07

Finding the Fourth Proportional to 12,608.28, 18,914.13 and 4,286.07

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Solution

The fourth proportional to 12,608.28, 18,914.13 and 4,286.07 is: 6,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.28 : 18,914.13 = 4,286.07 : x
  2. Step 2: Convert to fraction form
    12,608.28/18,914.13 = 4,286.07/x
  3. Step 3: Cross multiply
    12,608.28x = 18,914.13 × 4,286.07
  4. Step 4: Simplify right side
    12,608.28x = 81,067,285.17
  5. Step 5: Solve for x
    x = 81,067,285.17/12,608.28
  6. Step 6: Final answer
    x = 6,429.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.