Finding the Fourth Proportional to 10,391.05, 15,581.53 and 4,843.09
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Solution
The fourth proportional to 10,391.05, 15,581.53 and 4,843.09 is: 7,262.28
Step by Step Solution
- Step 1: Write the proportion equation
10,391.05 : 15,581.53 = 4,843.09 : x - Step 2: Convert to fraction form
10,391.05/15,581.53 = 4,843.09/x - Step 3: Cross multiply
10,391.05x = 15,581.53 × 4,843.09 - Step 4: Simplify right side
10,391.05x = 75,462,752.13 - Step 5: Solve for x
x = 75,462,752.13/10,391.05 - Step 6: Final answer
x = 7,262.28
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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.