Finding the Fourth Proportional to 8,409.51, 11,604.44 and 4,872.99
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Solution
The fourth proportional to 8,409.51, 11,604.44 and 4,872.99 is: 6,724.33
Step by Step Solution
- Step 1: Write the proportion equation
8,409.51 : 11,604.44 = 4,872.99 : x - Step 2: Convert to fraction form
8,409.51/11,604.44 = 4,872.99/x - Step 3: Cross multiply
8,409.51x = 11,604.44 × 4,872.99 - Step 4: Simplify right side
8,409.51x = 56,548,295.71 - Step 5: Solve for x
x = 56,548,295.71/8,409.51 - Step 6: Final answer
x = 6,724.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.