Finding the Fourth Proportional to 8,161.41, 11,269.10 and 6,269.99
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Solution
The fourth proportional to 8,161.41, 11,269.10 and 6,269.99 is: 8,657.46
Step by Step Solution
- Step 1: Write the proportion equation
8,161.41 : 11,269.10 = 6,269.99 : x - Step 2: Convert to fraction form
8,161.41/11,269.10 = 6,269.99/x - Step 3: Cross multiply
8,161.41x = 11,269.10 × 6,269.99 - Step 4: Simplify right side
8,161.41x = 70,657,112.96 - Step 5: Solve for x
x = 70,657,112.96/8,161.41 - Step 6: Final answer
x = 8,657.46
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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.