Home / 11,928.67-17,894.63-4,138.09

Finding the Fourth Proportional to 11,928.67, 17,894.63 and 4,138.09

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Solution

The fourth proportional to 11,928.67, 17,894.63 and 4,138.09 is: 6,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.67 : 17,894.63 = 4,138.09 : x
  2. Step 2: Convert to fraction form
    11,928.67/17,894.63 = 4,138.09/x
  3. Step 3: Cross multiply
    11,928.67x = 17,894.63 × 4,138.09
  4. Step 4: Simplify right side
    11,928.67x = 74,049,589.46
  5. Step 5: Solve for x
    x = 74,049,589.46/11,928.67
  6. Step 6: Final answer
    x = 6,207.70

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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.