Home / 19,431.97-26,811.77-11,469.94

Finding the Fourth Proportional to 19,431.97, 26,811.77 and 11,469.94

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Solution

The fourth proportional to 19,431.97, 26,811.77 and 11,469.94 is: 15,825.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.97 : 26,811.77 = 11,469.94 : x
  2. Step 2: Convert to fraction form
    19,431.97/26,811.77 = 11,469.94/x
  3. Step 3: Cross multiply
    19,431.97x = 26,811.77 × 11,469.94
  4. Step 4: Simplify right side
    19,431.97x = 307,529,268.81
  5. Step 5: Solve for x
    x = 307,529,268.81/19,431.97
  6. Step 6: Final answer
    x = 15,825.95

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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.