Home / 12,383.91-18,578.97-4,064.40

Finding the Fourth Proportional to 12,383.91, 18,578.97 and 4,064.40

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Solution

The fourth proportional to 12,383.91, 18,578.97 and 4,064.40 is: 6,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.91 : 18,578.97 = 4,064.40 : x
  2. Step 2: Convert to fraction form
    12,383.91/18,578.97 = 4,064.40/x
  3. Step 3: Cross multiply
    12,383.91x = 18,578.97 × 4,064.40
  4. Step 4: Simplify right side
    12,383.91x = 75,512,365.67
  5. Step 5: Solve for x
    x = 75,512,365.67/12,383.91
  6. Step 6: Final answer
    x = 6,097.62

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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.