Finding the Fourth Proportional to 8,130.24, 12,195.36 and 6,963.84
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Solution
The fourth proportional to 8,130.24, 12,195.36 and 6,963.84 is: 10,445.76
Step by Step Solution
- Step 1: Write the proportion equation
8,130.24 : 12,195.36 = 6,963.84 : x - Step 2: Convert to fraction form
8,130.24/12,195.36 = 6,963.84/x - Step 3: Cross multiply
8,130.24x = 12,195.36 × 6,963.84 - Step 4: Simplify right side
8,130.24x = 84,926,535.78 - Step 5: Solve for x
x = 84,926,535.78/8,130.24 - Step 6: Final answer
x = 10,445.76
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Double scale
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Similar ratio
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1.5x scale
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.