Home / 11,910.82-16,440.14-7,431.92

Finding the Fourth Proportional to 11,910.82, 16,440.14 and 7,431.92

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Solution

The fourth proportional to 11,910.82, 16,440.14 and 7,431.92 is: 10,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.82 : 16,440.14 = 7,431.92 : x
  2. Step 2: Convert to fraction form
    11,910.82/16,440.14 = 7,431.92/x
  3. Step 3: Cross multiply
    11,910.82x = 16,440.14 × 7,431.92
  4. Step 4: Simplify right side
    11,910.82x = 122,181,768.11
  5. Step 5: Solve for x
    x = 122,181,768.11/11,910.82
  6. Step 6: Final answer
    x = 10,258.05

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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.