Home / 18,936.98-26,138.34-13,273.22

Finding the Fourth Proportional to 18,936.98, 26,138.34 and 13,273.22

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Solution

The fourth proportional to 18,936.98, 26,138.34 and 13,273.22 is: 18,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.98 : 26,138.34 = 13,273.22 : x
  2. Step 2: Convert to fraction form
    18,936.98/26,138.34 = 13,273.22/x
  3. Step 3: Cross multiply
    18,936.98x = 26,138.34 × 13,273.22
  4. Step 4: Simplify right side
    18,936.98x = 346,940,002.60
  5. Step 5: Solve for x
    x = 346,940,002.60/18,936.98
  6. Step 6: Final answer
    x = 18,320.77

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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.