Home / 19,390.20-26,761-11,834.96

Finding the Fourth Proportional to 19,390.20, 26,761 and 11,834.96

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Solution

The fourth proportional to 19,390.20, 26,761 and 11,834.96 is: 16,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.20 : 26,761 = 11,834.96 : x
  2. Step 2: Convert to fraction form
    19,390.20/26,761 = 11,834.96/x
  3. Step 3: Cross multiply
    19,390.20x = 26,761 × 11,834.96
  4. Step 4: Simplify right side
    19,390.20x = 316,715,364.56
  5. Step 5: Solve for x
    x = 316,715,364.56/19,390.20
  6. Step 6: Final answer
    x = 16,333.79

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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.