Finding the Fourth Proportional to 11,206.55, 16,812.35 and 3,416.15
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Solution
The fourth proportional to 11,206.55, 16,812.35 and 3,416.15 is: 5,124.99
Step by Step Solution
- Step 1: Write the proportion equation
11,206.55 : 16,812.35 = 3,416.15 : x - Step 2: Convert to fraction form
11,206.55/16,812.35 = 3,416.15/x - Step 3: Cross multiply
11,206.55x = 16,812.35 × 3,416.15 - Step 4: Simplify right side
11,206.55x = 57,433,408.31 - Step 5: Solve for x
x = 57,433,408.31/11,206.55 - Step 6: Final answer
x = 5,124.99
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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.