Finding the Fourth Proportional to 14,119.95, 19,486.08 and 7,746.75
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Solution
The fourth proportional to 14,119.95, 19,486.08 and 7,746.75 is: 10,690.82
Step by Step Solution
- Step 1: Write the proportion equation
14,119.95 : 19,486.08 = 7,746.75 : x - Step 2: Convert to fraction form
14,119.95/19,486.08 = 7,746.75/x - Step 3: Cross multiply
14,119.95x = 19,486.08 × 7,746.75 - Step 4: Simplify right side
14,119.95x = 150,953,790.24 - Step 5: Solve for x
x = 150,953,790.24/14,119.95 - Step 6: Final answer
x = 10,690.82
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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.