Finding the Fourth Proportional to 18,480.79, 27,735.77 and 8,614.99
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Solution
The fourth proportional to 18,480.79, 27,735.77 and 8,614.99 is: 12,929.28
Step by Step Solution
- Step 1: Write the proportion equation
18,480.79 : 27,735.77 = 8,614.99 : x - Step 2: Convert to fraction form
18,480.79/27,735.77 = 8,614.99/x - Step 3: Cross multiply
18,480.79x = 27,735.77 × 8,614.99 - Step 4: Simplify right side
18,480.79x = 238,943,381.19 - Step 5: Solve for x
x = 238,943,381.19/18,480.79 - Step 6: Final answer
x = 12,929.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.