Finding the Fourth Proportional to 15,163.75, 20,926.11 and 8,876.26
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Solution
The fourth proportional to 15,163.75, 20,926.11 and 8,876.26 is: 12,249.32
Step by Step Solution
- Step 1: Write the proportion equation
15,163.75 : 20,926.11 = 8,876.26 : x - Step 2: Convert to fraction form
15,163.75/20,926.11 = 8,876.26/x - Step 3: Cross multiply
15,163.75x = 20,926.11 × 8,876.26 - Step 4: Simplify right side
15,163.75x = 185,745,593.15 - Step 5: Solve for x
x = 185,745,593.15/15,163.75 - Step 6: Final answer
x = 12,249.32
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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.