Home / 18,923.69-26,105.90-12,211.46

Finding the Fourth Proportional to 18,923.69, 26,105.90 and 12,211.46

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Solution

The fourth proportional to 18,923.69, 26,105.90 and 12,211.46 is: 16,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.69 : 26,105.90 = 12,211.46 : x
  2. Step 2: Convert to fraction form
    18,923.69/26,105.90 = 12,211.46/x
  3. Step 3: Cross multiply
    18,923.69x = 26,105.90 × 12,211.46
  4. Step 4: Simplify right side
    18,923.69x = 318,791,059.92
  5. Step 5: Solve for x
    x = 318,791,059.92/18,923.69
  6. Step 6: Final answer
    x = 16,846.13

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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.