Finding the Fourth Proportional to 18,511.02, 25,543.26 and 10,957.68
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Solution
The fourth proportional to 18,511.02, 25,543.26 and 10,957.68 is: 15,120.45
Step by Step Solution
- Step 1: Write the proportion equation
18,511.02 : 25,543.26 = 10,957.68 : x - Step 2: Convert to fraction form
18,511.02/25,543.26 = 10,957.68/x - Step 3: Cross multiply
18,511.02x = 25,543.26 × 10,957.68 - Step 4: Simplify right side
18,511.02x = 279,894,869.24 - Step 5: Solve for x
x = 279,894,869.24/18,511.02 - Step 6: Final answer
x = 15,120.45
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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.