Finding the Fourth Proportional to 8,644.93, 11,924.21 and 6,984.23
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Solution
The fourth proportional to 8,644.93, 11,924.21 and 6,984.23 is: 9,633.55
Step by Step Solution
- Step 1: Write the proportion equation
8,644.93 : 11,924.21 = 6,984.23 : x - Step 2: Convert to fraction form
8,644.93/11,924.21 = 6,984.23/x - Step 3: Cross multiply
8,644.93x = 11,924.21 × 6,984.23 - Step 4: Simplify right side
8,644.93x = 83,281,383.05 - Step 5: Solve for x
x = 83,281,383.05/8,644.93 - Step 6: Final answer
x = 9,633.55
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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.