Finding the Fourth Proportional to 10,451.18, 15,676.86 and 2,660
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Solution
The fourth proportional to 10,451.18, 15,676.86 and 2,660 is: 3,990.02
Step by Step Solution
- Step 1: Write the proportion equation
10,451.18 : 15,676.86 = 2,660 : x - Step 2: Convert to fraction form
10,451.18/15,676.86 = 2,660/x - Step 3: Cross multiply
10,451.18x = 15,676.86 × 2,660 - Step 4: Simplify right side
10,451.18x = 41,700,447.60 - Step 5: Solve for x
x = 41,700,447.60/10,451.18 - Step 6: Final answer
x = 3,990.02
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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.