Home / 16,991.06-23,450.43-9,917.46

Finding the Fourth Proportional to 16,991.06, 23,450.43 and 9,917.46

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Solution

The fourth proportional to 16,991.06, 23,450.43 and 9,917.46 is: 13,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.06 : 23,450.43 = 9,917.46 : x
  2. Step 2: Convert to fraction form
    16,991.06/23,450.43 = 9,917.46/x
  3. Step 3: Cross multiply
    16,991.06x = 23,450.43 × 9,917.46
  4. Step 4: Simplify right side
    16,991.06x = 232,568,701.51
  5. Step 5: Solve for x
    x = 232,568,701.51/16,991.06
  6. Step 6: Final answer
    x = 13,687.71

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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.