Finding the Fourth Proportional to 7,812.26, 11,717.19 and 2,547.26
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Solution
The fourth proportional to 7,812.26, 11,717.19 and 2,547.26 is: 3,820.50
Step by Step Solution
- Step 1: Write the proportion equation
7,812.26 : 11,717.19 = 2,547.26 : x - Step 2: Convert to fraction form
7,812.26/11,717.19 = 2,547.26/x - Step 3: Cross multiply
7,812.26x = 11,717.19 × 2,547.26 - Step 4: Simplify right side
7,812.26x = 29,846,729.40 - Step 5: Solve for x
x = 29,846,729.40/7,812.26 - Step 6: Final answer
x = 3,820.50
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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.