Finding the Fourth Proportional to 11,309.68, 16,964.34 and 3,518.92
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Solution
The fourth proportional to 11,309.68, 16,964.34 and 3,518.92 is: 5,278.32
Step by Step Solution
- Step 1: Write the proportion equation
11,309.68 : 16,964.34 = 3,518.92 : x - Step 2: Convert to fraction form
11,309.68/16,964.34 = 3,518.92/x - Step 3: Cross multiply
11,309.68x = 16,964.34 × 3,518.92 - Step 4: Simplify right side
11,309.68x = 59,696,155.31 - Step 5: Solve for x
x = 59,696,155.31/11,309.68 - Step 6: Final answer
x = 5,278.32
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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.