Home / 11,491.90-17,237.24-3,171.98

Finding the Fourth Proportional to 11,491.90, 17,237.24 and 3,171.98

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Solution

The fourth proportional to 11,491.90, 17,237.24 and 3,171.98 is: 4,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.90 : 17,237.24 = 3,171.98 : x
  2. Step 2: Convert to fraction form
    11,491.90/17,237.24 = 3,171.98/x
  3. Step 3: Cross multiply
    11,491.90x = 17,237.24 × 3,171.98
  4. Step 4: Simplify right side
    11,491.90x = 54,676,180.54
  5. Step 5: Solve for x
    x = 54,676,180.54/11,491.90
  6. Step 6: Final answer
    x = 4,757.80

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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.