Finding the Third Proportional to 8,690.63 and 18,690.12
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Solution
The third proportional to 8,690.63 and 18,690.12 is: 40,195.09
Step by Step Solution
- Step 1: Write the proportion equation
8,690.63 : 18,690.12 = 18,690.12 : x - Step 2: Convert to fraction form
8,690.63/18,690.12 = 18,690.12/x - Step 3: Cross multiply
8,690.63x = 18,690.12 × 18,690.12 - Step 4: Simplify right side
8,690.63x = 349,320,480.48 - Step 5: Solve for x
x = 349,320,480.48/8,690.63 - Step 6: Final answer
x = 40,195.09
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.