Finding the Fourth Proportional to 11,759.82, 17,636.97 and 3,438.09
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Solution
The fourth proportional to 11,759.82, 17,636.97 and 3,438.09 is: 5,156.33
Step by Step Solution
- Step 1: Write the proportion equation
11,759.82 : 17,636.97 = 3,438.09 : x - Step 2: Convert to fraction form
11,759.82/17,636.97 = 3,438.09/x - Step 3: Cross multiply
11,759.82x = 17,636.97 × 3,438.09 - Step 4: Simplify right side
11,759.82x = 60,637,490.19 - Step 5: Solve for x
x = 60,637,490.19/11,759.82 - Step 6: Final answer
x = 5,156.33
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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.