Finding the Third Proportional to 8,784 and 21,000
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Solution
The third proportional to 8,784 and 21,000 is: 50,204.92
Step by Step Solution
- Step 1: Write the proportion equation
8,784 : 21,000 = 21,000 : x - Step 2: Convert to fraction form
8,784/21,000 = 21,000/x - Step 3: Cross multiply
8,784x = 21,000 × 21,000 - Step 4: Simplify right side
8,784x = 441,000,000 - Step 5: Solve for x
x = 441,000,000/8,784 - Step 6: Final answer
x = 50,204.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.