Finding the Fourth Proportional to 11,179.38, 16,766.37 and 3,279.99
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Solution
The fourth proportional to 11,179.38, 16,766.37 and 3,279.99 is: 4,919.19
Step by Step Solution
- Step 1: Write the proportion equation
11,179.38 : 16,766.37 = 3,279.99 : x - Step 2: Convert to fraction form
11,179.38/16,766.37 = 3,279.99/x - Step 3: Cross multiply
11,179.38x = 16,766.37 × 3,279.99 - Step 4: Simplify right side
11,179.38x = 54,993,525.94 - Step 5: Solve for x
x = 54,993,525.94/11,179.38 - Step 6: Final answer
x = 4,919.19
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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.