Finding the Fourth Proportional to 10,629.12, 15,940 and 3,702.08
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Solution
The fourth proportional to 10,629.12, 15,940 and 3,702.08 is: 5,551.84
Step by Step Solution
- Step 1: Write the proportion equation
10,629.12 : 15,940 = 3,702.08 : x - Step 2: Convert to fraction form
10,629.12/15,940 = 3,702.08/x - Step 3: Cross multiply
10,629.12x = 15,940 × 3,702.08 - Step 4: Simplify right side
10,629.12x = 59,011,155.20 - Step 5: Solve for x
x = 59,011,155.20/10,629.12 - Step 6: Final answer
x = 5,551.84
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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.