Finding the Third Proportional to 4,615 and 9,878
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Solution
The third proportional to 4,615 and 9,878 is: 21,142.99
Step by Step Solution
- Step 1: Write the proportion equation
4,615 : 9,878 = 9,878 : x - Step 2: Convert to fraction form
4,615/9,878 = 9,878/x - Step 3: Cross multiply
4,615x = 9,878 × 9,878 - Step 4: Simplify right side
4,615x = 97,574,884 - Step 5: Solve for x
x = 97,574,884/4,615 - Step 6: Final answer
x = 21,142.99
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.