Finding the Fourth Proportional to 8,236.54, 11,355.42 and 6,814.99
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Solution
The fourth proportional to 8,236.54, 11,355.42 and 6,814.99 is: 9,395.58
Step by Step Solution
- Step 1: Write the proportion equation
8,236.54 : 11,355.42 = 6,814.99 : x - Step 2: Convert to fraction form
8,236.54/11,355.42 = 6,814.99/x - Step 3: Cross multiply
8,236.54x = 11,355.42 × 6,814.99 - Step 4: Simplify right side
8,236.54x = 77,387,073.75 - Step 5: Solve for x
x = 77,387,073.75/8,236.54 - Step 6: Final answer
x = 9,395.58
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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.