Home / 12,257.05-18,383.15-3,370.09

Finding the Fourth Proportional to 12,257.05, 18,383.15 and 3,370.09

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Solution

The fourth proportional to 12,257.05, 18,383.15 and 3,370.09 is: 5,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.05 : 18,383.15 = 3,370.09 : x
  2. Step 2: Convert to fraction form
    12,257.05/18,383.15 = 3,370.09/x
  3. Step 3: Cross multiply
    12,257.05x = 18,383.15 × 3,370.09
  4. Step 4: Simplify right side
    12,257.05x = 61,952,832.45
  5. Step 5: Solve for x
    x = 61,952,832.45/12,257.05
  6. Step 6: Final answer
    x = 5,054.47

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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.