Home / 13,939.36-20,889.83-9,246.92

Finding the Fourth Proportional to 13,939.36, 20,889.83 and 9,246.92

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Solution

The fourth proportional to 13,939.36, 20,889.83 and 9,246.92 is: 13,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.36 : 20,889.83 = 9,246.92 : x
  2. Step 2: Convert to fraction form
    13,939.36/20,889.83 = 9,246.92/x
  3. Step 3: Cross multiply
    13,939.36x = 20,889.83 × 9,246.92
  4. Step 4: Simplify right side
    13,939.36x = 193,166,505.49
  5. Step 5: Solve for x
    x = 193,166,505.49/13,939.36
  6. Step 6: Final answer
    x = 13,857.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.