Finding the Fourth Proportional to 18,868.99, 28,301.25 and 6,388.99
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Solution
The fourth proportional to 18,868.99, 28,301.25 and 6,388.99 is: 9,582.73
Step by Step Solution
- Step 1: Write the proportion equation
18,868.99 : 28,301.25 = 6,388.99 : x - Step 2: Convert to fraction form
18,868.99/28,301.25 = 6,388.99/x - Step 3: Cross multiply
18,868.99x = 28,301.25 × 6,388.99 - Step 4: Simplify right side
18,868.99x = 180,816,403.24 - Step 5: Solve for x
x = 180,816,403.24/18,868.99 - Step 6: Final answer
x = 9,582.73
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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.