Finding the Third Proportional to 16,818 and 18,618
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Solution
The third proportional to 16,818 and 18,618 is: 20,610.65
Step by Step Solution
- Step 1: Write the proportion equation
16,818 : 18,618 = 18,618 : x - Step 2: Convert to fraction form
16,818/18,618 = 18,618/x - Step 3: Cross multiply
16,818x = 18,618 × 18,618 - Step 4: Simplify right side
16,818x = 346,629,924 - Step 5: Solve for x
x = 346,629,924/16,818 - Step 6: Final answer
x = 20,610.65
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Why These Related Problems?
These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.