Finding the Fourth Proportional to 11,178.99, 16,749.09 and 6,787.17
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Solution
The fourth proportional to 11,178.99, 16,749.09 and 6,787.17 is: 10,168.98
Step by Step Solution
- Step 1: Write the proportion equation
11,178.99 : 16,749.09 = 6,787.17 : x - Step 2: Convert to fraction form
11,178.99/16,749.09 = 6,787.17/x - Step 3: Cross multiply
11,178.99x = 16,749.09 × 6,787.17 - Step 4: Simplify right side
11,178.99x = 113,678,921.18 - Step 5: Solve for x
x = 113,678,921.18/11,178.99 - Step 6: Final answer
x = 10,168.98
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1.5x scale
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.