Home / 11,513.22-17,249.58-8,209.26

Finding the Fourth Proportional to 11,513.22, 17,249.58 and 8,209.26

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Solution

The fourth proportional to 11,513.22, 17,249.58 and 8,209.26 is: 12,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.22 : 17,249.58 = 8,209.26 : x
  2. Step 2: Convert to fraction form
    11,513.22/17,249.58 = 8,209.26/x
  3. Step 3: Cross multiply
    11,513.22x = 17,249.58 × 8,209.26
  4. Step 4: Simplify right side
    11,513.22x = 141,606,287.11
  5. Step 5: Solve for x
    x = 141,606,287.11/11,513.22
  6. Step 6: Final answer
    x = 12,299.45

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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.