Finding the Fourth Proportional to 7,639.14, 10,528.62 and 6,574.26
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Solution
The fourth proportional to 7,639.14, 10,528.62 and 6,574.26 is: 9,060.95
Step by Step Solution
- Step 1: Write the proportion equation
7,639.14 : 10,528.62 = 6,574.26 : x - Step 2: Convert to fraction form
7,639.14/10,528.62 = 6,574.26/x - Step 3: Cross multiply
7,639.14x = 10,528.62 × 6,574.26 - Step 4: Simplify right side
7,639.14x = 69,217,885.32 - Step 5: Solve for x
x = 69,217,885.32/7,639.14 - Step 6: Final answer
x = 9,060.95
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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.