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Finding the Fourth Proportional to 11,755.99, 17,622.64 and 3,960.55

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Solution

The fourth proportional to 11,755.99, 17,622.64 and 3,960.55 is: 5,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.99 : 17,622.64 = 3,960.55 : x
  2. Step 2: Convert to fraction form
    11,755.99/17,622.64 = 3,960.55/x
  3. Step 3: Cross multiply
    11,755.99x = 17,622.64 × 3,960.55
  4. Step 4: Simplify right side
    11,755.99x = 69,795,373.83
  5. Step 5: Solve for x
    x = 69,795,373.83/11,755.99
  6. Step 6: Final answer
    x = 5,937.00

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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.