Home / 12,674.25-19,013.90-3,908.79

Finding the Fourth Proportional to 12,674.25, 19,013.90 and 3,908.79

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Solution

The fourth proportional to 12,674.25, 19,013.90 and 3,908.79 is: 5,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.25 : 19,013.90 = 3,908.79 : x
  2. Step 2: Convert to fraction form
    12,674.25/19,013.90 = 3,908.79/x
  3. Step 3: Cross multiply
    12,674.25x = 19,013.90 × 3,908.79
  4. Step 4: Simplify right side
    12,674.25x = 74,321,322.64
  5. Step 5: Solve for x
    x = 74,321,322.64/12,674.25
  6. Step 6: Final answer
    x = 5,863.96

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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.