Finding the Fourth Proportional to 14,583.88, 20,115.01 and 10,998.99
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Solution
The fourth proportional to 14,583.88, 20,115.01 and 10,998.99 is: 15,170.50
Step by Step Solution
- Step 1: Write the proportion equation
14,583.88 : 20,115.01 = 10,998.99 : x - Step 2: Convert to fraction form
14,583.88/20,115.01 = 10,998.99/x - Step 3: Cross multiply
14,583.88x = 20,115.01 × 10,998.99 - Step 4: Simplify right side
14,583.88x = 221,244,793.84 - Step 5: Solve for x
x = 221,244,793.84/14,583.88 - Step 6: Final answer
x = 15,170.50
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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.