Finding the Fourth Proportional to 8,129.07, 11,218.68 and 4,590.99
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Solution
The fourth proportional to 8,129.07, 11,218.68 and 4,590.99 is: 6,335.88
Step by Step Solution
- Step 1: Write the proportion equation
8,129.07 : 11,218.68 = 4,590.99 : x - Step 2: Convert to fraction form
8,129.07/11,218.68 = 4,590.99/x - Step 3: Cross multiply
8,129.07x = 11,218.68 × 4,590.99 - Step 4: Simplify right side
8,129.07x = 51,504,847.69 - Step 5: Solve for x
x = 51,504,847.69/8,129.07 - Step 6: Final answer
x = 6,335.88
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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.