Home / 16,785.40-23,163.39-9,231.73

Finding the Fourth Proportional to 16,785.40, 23,163.39 and 9,231.73

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Solution

The fourth proportional to 16,785.40, 23,163.39 and 9,231.73 is: 12,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.40 : 23,163.39 = 9,231.73 : x
  2. Step 2: Convert to fraction form
    16,785.40/23,163.39 = 9,231.73/x
  3. Step 3: Cross multiply
    16,785.40x = 23,163.39 × 9,231.73
  4. Step 4: Simplify right side
    16,785.40x = 213,838,162.36
  5. Step 5: Solve for x
    x = 213,838,162.36/16,785.40
  6. Step 6: Final answer
    x = 12,739.53

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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.