Home / 18,923.61-26,105.79-12,211.37

Finding the Fourth Proportional to 18,923.61, 26,105.79 and 12,211.37

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Solution

The fourth proportional to 18,923.61, 26,105.79 and 12,211.37 is: 16,846.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.61 : 26,105.79 = 12,211.37 : x
  2. Step 2: Convert to fraction form
    18,923.61/26,105.79 = 12,211.37/x
  3. Step 3: Cross multiply
    18,923.61x = 26,105.79 × 12,211.37
  4. Step 4: Simplify right side
    18,923.61x = 318,787,330.30
  5. Step 5: Solve for x
    x = 318,787,330.30/18,923.61
  6. Step 6: Final answer
    x = 16,846.01

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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.