Finding the Fourth Proportional to 11,397,589.72, 15,728,698.83 and 6,170,652.70
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Solution
The fourth proportional to 11,397,589.72, 15,728,698.83 and 6,170,652.70 is: 8,515,514.27
Step by Step Solution
- Step 1: Write the proportion equation
11,397,589.72 : 15,728,698.83 = 6,170,652.70 : x - Step 2: Convert to fraction form
11,397,589.72/15,728,698.83 = 6,170,652.70/x - Step 3: Cross multiply
11,397,589.72x = 15,728,698.83 × 6,170,652.70 - Step 4: Simplify right side
11,397,589.72x = 97,056,337,902,826.34 - Step 5: Solve for x
x = 97,056,337,902,826.34/11,397,589.72 - Step 6: Final answer
x = 8,515,514.27
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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.