Home / 11,910-16,436.26-6,604.70

Finding the Fourth Proportional to 11,910, 16,436.26 and 6,604.70

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Solution

The fourth proportional to 11,910, 16,436.26 and 6,604.70 is: 9,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910 : 16,436.26 = 6,604.70 : x
  2. Step 2: Convert to fraction form
    11,910/16,436.26 = 6,604.70/x
  3. Step 3: Cross multiply
    11,910x = 16,436.26 × 6,604.70
  4. Step 4: Simplify right side
    11,910x = 108,556,591.00
  5. Step 5: Solve for x
    x = 108,556,591.00/11,910
  6. Step 6: Final answer
    x = 9,114.74

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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.