Finding the Fourth Proportional to 10,688.92, 16,031.96 and 3,293.62
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Solution
The fourth proportional to 10,688.92, 16,031.96 and 3,293.62 is: 4,939.99
Step by Step Solution
- Step 1: Write the proportion equation
10,688.92 : 16,031.96 = 3,293.62 : x - Step 2: Convert to fraction form
10,688.92/16,031.96 = 3,293.62/x - Step 3: Cross multiply
10,688.92x = 16,031.96 × 3,293.62 - Step 4: Simplify right side
10,688.92x = 52,803,184.10 - Step 5: Solve for x
x = 52,803,184.10/10,688.92 - Step 6: Final answer
x = 4,939.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.