Finding the Third Proportional to 11,988 and 13,806
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Solution
The third proportional to 11,988 and 13,806 is: 15,899.70
Step by Step Solution
- Step 1: Write the proportion equation
11,988 : 13,806 = 13,806 : x - Step 2: Convert to fraction form
11,988/13,806 = 13,806/x - Step 3: Cross multiply
11,988x = 13,806 × 13,806 - Step 4: Simplify right side
11,988x = 190,605,636 - Step 5: Solve for x
x = 190,605,636/11,988 - Step 6: Final answer
x = 15,899.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.