Finding the Fourth Proportional to 8,461.08, 11,682.45 and 6,791.67
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Solution
The fourth proportional to 8,461.08, 11,682.45 and 6,791.67 is: 9,377.45
Step by Step Solution
- Step 1: Write the proportion equation
8,461.08 : 11,682.45 = 6,791.67 : x - Step 2: Convert to fraction form
8,461.08/11,682.45 = 6,791.67/x - Step 3: Cross multiply
8,461.08x = 11,682.45 × 6,791.67 - Step 4: Simplify right side
8,461.08x = 79,343,345.19 - Step 5: Solve for x
x = 79,343,345.19/8,461.08 - Step 6: Final answer
x = 9,377.45
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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.