Finding the Fourth Proportional to 12,854.60, 19,293.08 and 7,319.08
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Solution
The fourth proportional to 12,854.60, 19,293.08 and 7,319.08 is: 10,984.99
Step by Step Solution
- Step 1: Write the proportion equation
12,854.60 : 19,293.08 = 7,319.08 : x - Step 2: Convert to fraction form
12,854.60/19,293.08 = 7,319.08/x - Step 3: Cross multiply
12,854.60x = 19,293.08 × 7,319.08 - Step 4: Simplify right side
12,854.60x = 141,207,595.97 - Step 5: Solve for x
x = 141,207,595.97/12,854.60 - Step 6: Final answer
x = 10,984.99
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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.