Finding the Fourth Proportional to 7,901.47, 11,858.69 and 4,006.99
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Solution
The fourth proportional to 7,901.47, 11,858.69 and 4,006.99 is: 6,013.77
Step by Step Solution
- Step 1: Write the proportion equation
7,901.47 : 11,858.69 = 4,006.99 : x - Step 2: Convert to fraction form
7,901.47/11,858.69 = 4,006.99/x - Step 3: Cross multiply
7,901.47x = 11,858.69 × 4,006.99 - Step 4: Simplify right side
7,901.47x = 47,517,652.24 - Step 5: Solve for x
x = 47,517,652.24/7,901.47 - Step 6: Final answer
x = 6,013.77
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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.