Home / 19,392.85-26,761.42-11,851.80

Finding the Fourth Proportional to 19,392.85, 26,761.42 and 11,851.80

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Solution

The fourth proportional to 19,392.85, 26,761.42 and 11,851.80 is: 16,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.85 : 26,761.42 = 11,851.80 : x
  2. Step 2: Convert to fraction form
    19,392.85/26,761.42 = 11,851.80/x
  3. Step 3: Cross multiply
    19,392.85x = 26,761.42 × 11,851.80
  4. Step 4: Simplify right side
    19,392.85x = 317,170,997.56
  5. Step 5: Solve for x
    x = 317,170,997.56/19,392.85
  6. Step 6: Final answer
    x = 16,355.05

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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.