Finding the Third Proportional to 7,890.75 and 18,177.75
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Solution
The third proportional to 7,890.75 and 18,177.75 is: 41,875.69
Step by Step Solution
- Step 1: Write the proportion equation
7,890.75 : 18,177.75 = 18,177.75 : x - Step 2: Convert to fraction form
7,890.75/18,177.75 = 18,177.75/x - Step 3: Cross multiply
7,890.75x = 18,177.75 × 18,177.75 - Step 4: Simplify right side
7,890.75x = 330,430,595.06 - Step 5: Solve for x
x = 330,430,595.06/7,890.75 - Step 6: Final answer
x = 41,875.69
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Why These Related Problems?
These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.