Home / 11,328.38-16,988.22-6,131.42

Finding the Fourth Proportional to 11,328.38, 16,988.22 and 6,131.42

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Solution

The fourth proportional to 11,328.38, 16,988.22 and 6,131.42 is: 9,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.38 : 16,988.22 = 6,131.42 : x
  2. Step 2: Convert to fraction form
    11,328.38/16,988.22 = 6,131.42/x
  3. Step 3: Cross multiply
    11,328.38x = 16,988.22 × 6,131.42
  4. Step 4: Simplify right side
    11,328.38x = 104,161,911.87
  5. Step 5: Solve for x
    x = 104,161,911.87/11,328.38
  6. Step 6: Final answer
    x = 9,194.78

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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.