Finding the Third Proportional to 7,851.75 and 11,178.75
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Solution
The third proportional to 7,851.75 and 11,178.75 is: 15,915.49
Step by Step Solution
- Step 1: Write the proportion equation
7,851.75 : 11,178.75 = 11,178.75 : x - Step 2: Convert to fraction form
7,851.75/11,178.75 = 11,178.75/x - Step 3: Cross multiply
7,851.75x = 11,178.75 × 11,178.75 - Step 4: Simplify right side
7,851.75x = 124,964,451.56 - Step 5: Solve for x
x = 124,964,451.56/7,851.75 - Step 6: Final answer
x = 15,915.49
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These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.