Finding the Fourth Proportional to 14,782.26, 20,394.27 and 8,490.99
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Solution
The fourth proportional to 14,782.26, 20,394.27 and 8,490.99 is: 11,714.55
Step by Step Solution
- Step 1: Write the proportion equation
14,782.26 : 20,394.27 = 8,490.99 : x - Step 2: Convert to fraction form
14,782.26/20,394.27 = 8,490.99/x - Step 3: Cross multiply
14,782.26x = 20,394.27 × 8,490.99 - Step 4: Simplify right side
14,782.26x = 173,167,542.63 - Step 5: Solve for x
x = 173,167,542.63/14,782.26 - Step 6: Final answer
x = 11,714.55
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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.