Finding the Fourth Proportional to 8,163.08, 11,267.62 and 4,628.65
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Solution
The fourth proportional to 8,163.08, 11,267.62 and 4,628.65 is: 6,388.99
Step by Step Solution
- Step 1: Write the proportion equation
8,163.08 : 11,267.62 = 4,628.65 : x - Step 2: Convert to fraction form
8,163.08/11,267.62 = 4,628.65/x - Step 3: Cross multiply
8,163.08x = 11,267.62 × 4,628.65 - Step 4: Simplify right side
8,163.08x = 52,153,869.31 - Step 5: Solve for x
x = 52,153,869.31/8,163.08 - Step 6: Final answer
x = 6,388.99
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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.