Home / 11,138.92-15,371.68-6,103.15

Finding the Fourth Proportional to 11,138.92, 15,371.68 and 6,103.15

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Solution

The fourth proportional to 11,138.92, 15,371.68 and 6,103.15 is: 8,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.92 : 15,371.68 = 6,103.15 : x
  2. Step 2: Convert to fraction form
    11,138.92/15,371.68 = 6,103.15/x
  3. Step 3: Cross multiply
    11,138.92x = 15,371.68 × 6,103.15
  4. Step 4: Simplify right side
    11,138.92x = 93,815,668.79
  5. Step 5: Solve for x
    x = 93,815,668.79/11,138.92
  6. Step 6: Final answer
    x = 8,422.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.