Finding the Fourth Proportional to 7,884.05, 11,830.67 and 4,376.99
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Solution
The fourth proportional to 7,884.05, 11,830.67 and 4,376.99 is: 6,568.03
Step by Step Solution
- Step 1: Write the proportion equation
7,884.05 : 11,830.67 = 4,376.99 : x - Step 2: Convert to fraction form
7,884.05/11,830.67 = 4,376.99/x - Step 3: Cross multiply
7,884.05x = 11,830.67 × 4,376.99 - Step 4: Simplify right side
7,884.05x = 51,782,702.40 - Step 5: Solve for x
x = 51,782,702.40/7,884.05 - Step 6: Final answer
x = 6,568.03
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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.