Finding the Fourth Proportional to 8,489.21, 11,706.95 and 6,598.09
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Solution
The fourth proportional to 8,489.21, 11,706.95 and 6,598.09 is: 9,099.01
Step by Step Solution
- Step 1: Write the proportion equation
8,489.21 : 11,706.95 = 6,598.09 : x - Step 2: Convert to fraction form
8,489.21/11,706.95 = 6,598.09/x - Step 3: Cross multiply
8,489.21x = 11,706.95 × 6,598.09 - Step 4: Simplify right side
8,489.21x = 77,243,418.20 - Step 5: Solve for x
x = 77,243,418.20/8,489.21 - Step 6: Final answer
x = 9,099.01
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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.