Finding the Fourth Proportional to 8,131.11, 11,220.99 and 4,594.65
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Solution
The fourth proportional to 8,131.11, 11,220.99 and 4,594.65 is: 6,340.65
Step by Step Solution
- Step 1: Write the proportion equation
8,131.11 : 11,220.99 = 4,594.65 : x - Step 2: Convert to fraction form
8,131.11/11,220.99 = 4,594.65/x - Step 3: Cross multiply
8,131.11x = 11,220.99 × 4,594.65 - Step 4: Simplify right side
8,131.11x = 51,556,521.70 - Step 5: Solve for x
x = 51,556,521.70/8,131.11 - Step 6: Final answer
x = 6,340.65
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Double scale
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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.