Finding the Fourth Proportional to 26,430.99, 39,646.50 and 7,962.99
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Solution
The fourth proportional to 26,430.99, 39,646.50 and 7,962.99 is: 11,944.49
Step by Step Solution
- Step 1: Write the proportion equation
26,430.99 : 39,646.50 = 7,962.99 : x - Step 2: Convert to fraction form
26,430.99/39,646.50 = 7,962.99/x - Step 3: Cross multiply
26,430.99x = 39,646.50 × 7,962.99 - Step 4: Simplify right side
26,430.99x = 315,704,683.04 - Step 5: Solve for x
x = 315,704,683.04/26,430.99 - Step 6: Final answer
x = 11,944.49
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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.