Finding the Fourth Proportional to 13,025.71, 19,538.58 and 3,164.99
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Solution
The fourth proportional to 13,025.71, 19,538.58 and 3,164.99 is: 4,747.49
Step by Step Solution
- Step 1: Write the proportion equation
13,025.71 : 19,538.58 = 3,164.99 : x - Step 2: Convert to fraction form
13,025.71/19,538.58 = 3,164.99/x - Step 3: Cross multiply
13,025.71x = 19,538.58 × 3,164.99 - Step 4: Simplify right side
13,025.71x = 61,839,410.31 - Step 5: Solve for x
x = 61,839,410.31/13,025.71 - Step 6: Final answer
x = 4,747.49
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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.