Finding the Fourth Proportional to 15,130.99, 22,679.67 and 11,421.19
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Solution
The fourth proportional to 15,130.99, 22,679.67 and 11,421.19 is: 17,119.09
Step by Step Solution
- Step 1: Write the proportion equation
15,130.99 : 22,679.67 = 11,421.19 : x - Step 2: Convert to fraction form
15,130.99/22,679.67 = 11,421.19/x - Step 3: Cross multiply
15,130.99x = 22,679.67 × 11,421.19 - Step 4: Simplify right side
15,130.99x = 259,028,820.21 - Step 5: Solve for x
x = 259,028,820.21/15,130.99 - Step 6: Final answer
x = 17,119.09
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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.