Home / 9,193.91-12,687.05-5,160.36

Finding the Fourth Proportional to 9,193.91, 12,687.05 and 5,160.36

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Solution

The fourth proportional to 9,193.91, 12,687.05 and 5,160.36 is: 7,120.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,193.91 : 12,687.05 = 5,160.36 : x
  2. Step 2: Convert to fraction form
    9,193.91/12,687.05 = 5,160.36/x
  3. Step 3: Cross multiply
    9,193.91x = 12,687.05 × 5,160.36
  4. Step 4: Simplify right side
    9,193.91x = 65,469,745.34
  5. Step 5: Solve for x
    x = 65,469,745.34/9,193.91
  6. Step 6: Final answer
    x = 7,120.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.