Home / 18,455.56-27,684.78-6,768.52

Finding the Fourth Proportional to 18,455.56, 27,684.78 and 6,768.52

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Solution

The fourth proportional to 18,455.56, 27,684.78 and 6,768.52 is: 10,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.56 : 27,684.78 = 6,768.52 : x
  2. Step 2: Convert to fraction form
    18,455.56/27,684.78 = 6,768.52/x
  3. Step 3: Cross multiply
    18,455.56x = 27,684.78 × 6,768.52
  4. Step 4: Simplify right side
    18,455.56x = 187,384,987.13
  5. Step 5: Solve for x
    x = 187,384,987.13/18,455.56
  6. Step 6: Final answer
    x = 10,153.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.