Home / 13,694.36-18,898.25-7,406.73

Finding the Fourth Proportional to 13,694.36, 18,898.25 and 7,406.73

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Solution

The fourth proportional to 13,694.36, 18,898.25 and 7,406.73 is: 10,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.36 : 18,898.25 = 7,406.73 : x
  2. Step 2: Convert to fraction form
    13,694.36/18,898.25 = 7,406.73/x
  3. Step 3: Cross multiply
    13,694.36x = 18,898.25 × 7,406.73
  4. Step 4: Simplify right side
    13,694.36x = 139,974,198.19
  5. Step 5: Solve for x
    x = 139,974,198.19/13,694.36
  6. Step 6: Final answer
    x = 10,221.31

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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.