Home / 11,018.10-16,513.10-5,161.80

Finding the Fourth Proportional to 11,018.10, 16,513.10 and 5,161.80

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Solution

The fourth proportional to 11,018.10, 16,513.10 and 5,161.80 is: 7,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.10 : 16,513.10 = 5,161.80 : x
  2. Step 2: Convert to fraction form
    11,018.10/16,513.10 = 5,161.80/x
  3. Step 3: Cross multiply
    11,018.10x = 16,513.10 × 5,161.80
  4. Step 4: Simplify right side
    11,018.10x = 85,237,249.92
  5. Step 5: Solve for x
    x = 85,237,249.92/11,018.10
  6. Step 6: Final answer
    x = 7,736.11

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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.