Home / 18,939.36-26,150.24-12,228.92

Finding the Fourth Proportional to 18,939.36, 26,150.24 and 12,228.92

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Solution

The fourth proportional to 18,939.36, 26,150.24 and 12,228.92 is: 16,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.36 : 26,150.24 = 12,228.92 : x
  2. Step 2: Convert to fraction form
    18,939.36/26,150.24 = 12,228.92/x
  3. Step 3: Cross multiply
    18,939.36x = 26,150.24 × 12,228.92
  4. Step 4: Simplify right side
    18,939.36x = 319,789,192.94
  5. Step 5: Solve for x
    x = 319,789,192.94/18,939.36
  6. Step 6: Final answer
    x = 16,884.90

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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.