Finding the Third Proportional to 4,050 and 9,990
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Solution
The third proportional to 4,050 and 9,990 is: 24,642
Step by Step Solution
- Step 1: Write the proportion equation
4,050 : 9,990 = 9,990 : x - Step 2: Convert to fraction form
4,050/9,990 = 9,990/x - Step 3: Cross multiply
4,050x = 9,990 × 9,990 - Step 4: Simplify right side
4,050x = 99,800,100 - Step 5: Solve for x
x = 99,800,100/4,050 - Step 6: Final answer
x = 24,642
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.