Home / 11,745.92-16,203.20-7,028.80

Finding the Fourth Proportional to 11,745.92, 16,203.20 and 7,028.80

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Solution

The fourth proportional to 11,745.92, 16,203.20 and 7,028.80 is: 9,696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.92 : 16,203.20 = 7,028.80 : x
  2. Step 2: Convert to fraction form
    11,745.92/16,203.20 = 7,028.80/x
  3. Step 3: Cross multiply
    11,745.92x = 16,203.20 × 7,028.80
  4. Step 4: Simplify right side
    11,745.92x = 113,889,052.16
  5. Step 5: Solve for x
    x = 113,889,052.16/11,745.92
  6. Step 6: Final answer
    x = 9,696.05

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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.