Finding the Fourth Proportional to 12,942.72, 19,416.96 and 3,708
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Solution
The fourth proportional to 12,942.72, 19,416.96 and 3,708 is: 5,562.83
Step by Step Solution
- Step 1: Write the proportion equation
12,942.72 : 19,416.96 = 3,708 : x - Step 2: Convert to fraction form
12,942.72/19,416.96 = 3,708/x - Step 3: Cross multiply
12,942.72x = 19,416.96 × 3,708 - Step 4: Simplify right side
12,942.72x = 71,998,087.68 - Step 5: Solve for x
x = 71,998,087.68/12,942.72 - Step 6: Final answer
x = 5,562.83
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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.