Finding the Third Proportional to 11,440 and 15,890
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Solution
The third proportional to 11,440 and 15,890 is: 22,070.99
Step by Step Solution
- Step 1: Write the proportion equation
11,440 : 15,890 = 15,890 : x - Step 2: Convert to fraction form
11,440/15,890 = 15,890/x - Step 3: Cross multiply
11,440x = 15,890 × 15,890 - Step 4: Simplify right side
11,440x = 252,492,100 - Step 5: Solve for x
x = 252,492,100/11,440 - Step 6: Final answer
x = 22,070.99
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.