Finding the Fourth Proportional to 8,125.92, 11,221.74 and 6,940.08
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Solution
The fourth proportional to 8,125.92, 11,221.74 and 6,940.08 is: 9,584.12
Step by Step Solution
- Step 1: Write the proportion equation
8,125.92 : 11,221.74 = 6,940.08 : x - Step 2: Convert to fraction form
8,125.92/11,221.74 = 6,940.08/x - Step 3: Cross multiply
8,125.92x = 11,221.74 × 6,940.08 - Step 4: Simplify right side
8,125.92x = 77,879,773.34 - Step 5: Solve for x
x = 77,879,773.34/8,125.92 - Step 6: Final answer
x = 9,584.12
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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.