Finding the Fourth Proportional to 13,896.75, 19,177.70 and 7,608.99
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Solution
The fourth proportional to 13,896.75, 19,177.70 and 7,608.99 is: 10,500.50
Step by Step Solution
- Step 1: Write the proportion equation
13,896.75 : 19,177.70 = 7,608.99 : x - Step 2: Convert to fraction form
13,896.75/19,177.70 = 7,608.99/x - Step 3: Cross multiply
13,896.75x = 19,177.70 × 7,608.99 - Step 4: Simplify right side
13,896.75x = 145,922,889.48 - Step 5: Solve for x
x = 145,922,889.48/13,896.75 - Step 6: Final answer
x = 10,500.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.