Finding the Fourth Proportional to 10,390.68, 15,588.36 and 3,465
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Solution
The fourth proportional to 10,390.68, 15,588.36 and 3,465 is: 5,198.28
Step by Step Solution
- Step 1: Write the proportion equation
10,390.68 : 15,588.36 = 3,465 : x - Step 2: Convert to fraction form
10,390.68/15,588.36 = 3,465/x - Step 3: Cross multiply
10,390.68x = 15,588.36 × 3,465 - Step 4: Simplify right side
10,390.68x = 54,013,667.40 - Step 5: Solve for x
x = 54,013,667.40/10,390.68 - Step 6: Final answer
x = 5,198.28
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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.