Finding the Fourth Proportional to 7,698.08, 11,537.26 and 4,189.70
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Solution
The fourth proportional to 7,698.08, 11,537.26 and 4,189.70 is: 6,279.18
Step by Step Solution
- Step 1: Write the proportion equation
7,698.08 : 11,537.26 = 4,189.70 : x - Step 2: Convert to fraction form
7,698.08/11,537.26 = 4,189.70/x - Step 3: Cross multiply
7,698.08x = 11,537.26 × 4,189.70 - Step 4: Simplify right side
7,698.08x = 48,337,658.22 - Step 5: Solve for x
x = 48,337,658.22/7,698.08 - Step 6: Final answer
x = 6,279.18
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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.