Home / 17,491.10-26,195.67-12,231.36

Finding the Fourth Proportional to 17,491.10, 26,195.67 and 12,231.36

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Solution

The fourth proportional to 17,491.10, 26,195.67 and 12,231.36 is: 18,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,491.10 : 26,195.67 = 12,231.36 : x
  2. Step 2: Convert to fraction form
    17,491.10/26,195.67 = 12,231.36/x
  3. Step 3: Cross multiply
    17,491.10x = 26,195.67 × 12,231.36
  4. Step 4: Simplify right side
    17,491.10x = 320,408,670.21
  5. Step 5: Solve for x
    x = 320,408,670.21/17,491.10
  6. Step 6: Final answer
    x = 18,318.39

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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.