Finding the Third Proportional to 4,920.75 and 12,939.75
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Solution
The third proportional to 4,920.75 and 12,939.75 is: 34,026.75
Step by Step Solution
- Step 1: Write the proportion equation
4,920.75 : 12,939.75 = 12,939.75 : x - Step 2: Convert to fraction form
4,920.75/12,939.75 = 12,939.75/x - Step 3: Cross multiply
4,920.75x = 12,939.75 × 12,939.75 - Step 4: Simplify right side
4,920.75x = 167,437,130.06 - Step 5: Solve for x
x = 167,437,130.06/4,920.75 - Step 6: Final answer
x = 34,026.75
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These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.