Finding the Fourth Proportional to 11,785.19, 17,677.74 and 3,020.09
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Solution
The fourth proportional to 11,785.19, 17,677.74 and 3,020.09 is: 4,530.12
Step by Step Solution
- Step 1: Write the proportion equation
11,785.19 : 17,677.74 = 3,020.09 : x - Step 2: Convert to fraction form
11,785.19/17,677.74 = 3,020.09/x - Step 3: Cross multiply
11,785.19x = 17,677.74 × 3,020.09 - Step 4: Simplify right side
11,785.19x = 53,388,365.80 - Step 5: Solve for x
x = 53,388,365.80/11,785.19 - Step 6: Final answer
x = 4,530.12
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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.