Home / 13,738.18-18,944.73-11,755.30

Finding the Fourth Proportional to 13,738.18, 18,944.73 and 11,755.30

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Solution

The fourth proportional to 13,738.18, 18,944.73 and 11,755.30 is: 16,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.18 : 18,944.73 = 11,755.30 : x
  2. Step 2: Convert to fraction form
    13,738.18/18,944.73 = 11,755.30/x
  3. Step 3: Cross multiply
    13,738.18x = 18,944.73 × 11,755.30
  4. Step 4: Simplify right side
    13,738.18x = 222,700,984.57
  5. Step 5: Solve for x
    x = 222,700,984.57/13,738.18
  6. Step 6: Final answer
    x = 16,210.37

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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.