Finding the Third Proportional to 7,872.19 and 11,221.03
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Solution
The third proportional to 7,872.19 and 11,221.03 is: 15,994.48
Step by Step Solution
- Step 1: Write the proportion equation
7,872.19 : 11,221.03 = 11,221.03 : x - Step 2: Convert to fraction form
7,872.19/11,221.03 = 11,221.03/x - Step 3: Cross multiply
7,872.19x = 11,221.03 × 11,221.03 - Step 4: Simplify right side
7,872.19x = 125,911,542.31 - Step 5: Solve for x
x = 125,911,542.31/7,872.19 - Step 6: Final answer
x = 15,994.48
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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.