Finding the Third Proportional to 7,290.75 and 11,310.75
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Solution
The third proportional to 7,290.75 and 11,310.75 is: 17,547.31
Step by Step Solution
- Step 1: Write the proportion equation
7,290.75 : 11,310.75 = 11,310.75 : x - Step 2: Convert to fraction form
7,290.75/11,310.75 = 11,310.75/x - Step 3: Cross multiply
7,290.75x = 11,310.75 × 11,310.75 - Step 4: Simplify right side
7,290.75x = 127,933,065.56 - Step 5: Solve for x
x = 127,933,065.56/7,290.75 - Step 6: Final answer
x = 17,547.31
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.