Finding the Fourth Proportional to 8,123.22, 12,185.27 and 2,576.99
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Solution
The fourth proportional to 8,123.22, 12,185.27 and 2,576.99 is: 3,865.62
Step by Step Solution
- Step 1: Write the proportion equation
8,123.22 : 12,185.27 = 2,576.99 : x - Step 2: Convert to fraction form
8,123.22/12,185.27 = 2,576.99/x - Step 3: Cross multiply
8,123.22x = 12,185.27 × 2,576.99 - Step 4: Simplify right side
8,123.22x = 31,401,245.13 - Step 5: Solve for x
x = 31,401,245.13/8,123.22 - Step 6: Final answer
x = 3,865.62
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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.