Finding the Fourth Proportional to 7,924.74, 11,887.09 and 3,246.93
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Solution
The fourth proportional to 7,924.74, 11,887.09 and 3,246.93 is: 4,870.39
Step by Step Solution
- Step 1: Write the proportion equation
7,924.74 : 11,887.09 = 3,246.93 : x - Step 2: Convert to fraction form
7,924.74/11,887.09 = 3,246.93/x - Step 3: Cross multiply
7,924.74x = 11,887.09 × 3,246.93 - Step 4: Simplify right side
7,924.74x = 38,596,549.13 - Step 5: Solve for x
x = 38,596,549.13/7,924.74 - Step 6: Final answer
x = 4,870.39
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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.