Finding the Fourth Proportional to 10,909.68, 16,366.86 and 3,984
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Solution
The fourth proportional to 10,909.68, 16,366.86 and 3,984 is: 5,976.85
Step by Step Solution
- Step 1: Write the proportion equation
10,909.68 : 16,366.86 = 3,984 : x - Step 2: Convert to fraction form
10,909.68/16,366.86 = 3,984/x - Step 3: Cross multiply
10,909.68x = 16,366.86 × 3,984 - Step 4: Simplify right side
10,909.68x = 65,205,570.24 - Step 5: Solve for x
x = 65,205,570.24/10,909.68 - Step 6: Final answer
x = 5,976.85
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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.