Finding the Fourth Proportional to 14,817.24, 20,447.79 and 8,102.87
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Solution
The fourth proportional to 14,817.24, 20,447.79 and 8,102.87 is: 11,181.95
Step by Step Solution
- Step 1: Write the proportion equation
14,817.24 : 20,447.79 = 8,102.87 : x - Step 2: Convert to fraction form
14,817.24/20,447.79 = 8,102.87/x - Step 3: Cross multiply
14,817.24x = 20,447.79 × 8,102.87 - Step 4: Simplify right side
14,817.24x = 165,685,744.08 - Step 5: Solve for x
x = 165,685,744.08/14,817.24 - Step 6: Final answer
x = 11,181.95
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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.