Home / 8,174.56-12,257.36-3,789.60

Finding the Fourth Proportional to 8,174.56, 12,257.36 and 3,789.60

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Solution

The fourth proportional to 8,174.56, 12,257.36 and 3,789.60 is: 5,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.56 : 12,257.36 = 3,789.60 : x
  2. Step 2: Convert to fraction form
    8,174.56/12,257.36 = 3,789.60/x
  3. Step 3: Cross multiply
    8,174.56x = 12,257.36 × 3,789.60
  4. Step 4: Simplify right side
    8,174.56x = 46,450,491.46
  5. Step 5: Solve for x
    x = 46,450,491.46/8,174.56
  6. Step 6: Final answer
    x = 5,682.32

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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.