Finding the Fourth Proportional to 7,855.94, 11,770.07 and 4,149.99
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Solution
The fourth proportional to 7,855.94, 11,770.07 and 4,149.99 is: 6,217.67
Step by Step Solution
- Step 1: Write the proportion equation
7,855.94 : 11,770.07 = 4,149.99 : x - Step 2: Convert to fraction form
7,855.94/11,770.07 = 4,149.99/x - Step 3: Cross multiply
7,855.94x = 11,770.07 × 4,149.99 - Step 4: Simplify right side
7,855.94x = 48,845,652.05 - Step 5: Solve for x
x = 48,845,652.05/7,855.94 - Step 6: Final answer
x = 6,217.67
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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.