Finding the Fourth Proportional to 13,257,043.20, 18,297,230.76 and 8,297,784.18
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Solution
The fourth proportional to 13,257,043.20, 18,297,230.76 and 8,297,784.18 is: 11,452,513.93
Step by Step Solution
- Step 1: Write the proportion equation
13,257,043.20 : 18,297,230.76 = 8,297,784.18 : x - Step 2: Convert to fraction form
13,257,043.20/18,297,230.76 = 8,297,784.18/x - Step 3: Cross multiply
13,257,043.20x = 18,297,230.76 × 8,297,784.18 - Step 4: Simplify right side
13,257,043.20x = 151,826,471,938,137.38 - Step 5: Solve for x
x = 151,826,471,938,137.38/13,257,043.20 - Step 6: Final answer
x = 11,452,513.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.