Finding the Fourth Proportional to 8,272.53, 11,403.99 and 6,778.08
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Solution
The fourth proportional to 8,272.53, 11,403.99 and 6,778.08 is: 9,343.84
Step by Step Solution
- Step 1: Write the proportion equation
8,272.53 : 11,403.99 = 6,778.08 : x - Step 2: Convert to fraction form
8,272.53/11,403.99 = 6,778.08/x - Step 3: Cross multiply
8,272.53x = 11,403.99 × 6,778.08 - Step 4: Simplify right side
8,272.53x = 77,297,156.54 - Step 5: Solve for x
x = 77,297,156.54/8,272.53 - Step 6: Final answer
x = 9,343.84
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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.