Finding the Fourth Proportional to 8,378.68, 12,558.30 and 6,737.08
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Solution
The fourth proportional to 8,378.68, 12,558.30 and 6,737.08 is: 10,097.80
Step by Step Solution
- Step 1: Write the proportion equation
8,378.68 : 12,558.30 = 6,737.08 : x - Step 2: Convert to fraction form
8,378.68/12,558.30 = 6,737.08/x - Step 3: Cross multiply
8,378.68x = 12,558.30 × 6,737.08 - Step 4: Simplify right side
8,378.68x = 84,606,271.76 - Step 5: Solve for x
x = 84,606,271.76/8,378.68 - Step 6: Final answer
x = 10,097.80
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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.