Finding the Third Proportional to 7,990.50 and 12,192.75
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Solution
The third proportional to 7,990.50 and 12,192.75 is: 18,604.99
Step by Step Solution
- Step 1: Write the proportion equation
7,990.50 : 12,192.75 = 12,192.75 : x - Step 2: Convert to fraction form
7,990.50/12,192.75 = 12,192.75/x - Step 3: Cross multiply
7,990.50x = 12,192.75 × 12,192.75 - Step 4: Simplify right side
7,990.50x = 148,663,152.56 - Step 5: Solve for x
x = 148,663,152.56/7,990.50 - Step 6: Final answer
x = 18,604.99
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.