Home / 19,845.54-27,384.84-11,887.56

Finding the Fourth Proportional to 19,845.54, 27,384.84 and 11,887.56

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Solution

The fourth proportional to 19,845.54, 27,384.84 and 11,887.56 is: 16,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.54 : 27,384.84 = 11,887.56 : x
  2. Step 2: Convert to fraction form
    19,845.54/27,384.84 = 11,887.56/x
  3. Step 3: Cross multiply
    19,845.54x = 27,384.84 × 11,887.56
  4. Step 4: Simplify right side
    19,845.54x = 325,538,928.59
  5. Step 5: Solve for x
    x = 325,538,928.59/19,845.54
  6. Step 6: Final answer
    x = 16,403.63

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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.