Home / 11,121.69-16,677.68-3,328.68

Finding the Fourth Proportional to 11,121.69, 16,677.68 and 3,328.68

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Solution

The fourth proportional to 11,121.69, 16,677.68 and 3,328.68 is: 4,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.69 : 16,677.68 = 3,328.68 : x
  2. Step 2: Convert to fraction form
    11,121.69/16,677.68 = 3,328.68/x
  3. Step 3: Cross multiply
    11,121.69x = 16,677.68 × 3,328.68
  4. Step 4: Simplify right side
    11,121.69x = 55,514,724.48
  5. Step 5: Solve for x
    x = 55,514,724.48/11,121.69
  6. Step 6: Final answer
    x = 4,991.57

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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.