Home / 18,749.31-28,091.56-9,851.41

Finding the Fourth Proportional to 18,749.31, 28,091.56 and 9,851.41

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Solution

The fourth proportional to 18,749.31, 28,091.56 and 9,851.41 is: 14,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.31 : 28,091.56 = 9,851.41 : x
  2. Step 2: Convert to fraction form
    18,749.31/28,091.56 = 9,851.41/x
  3. Step 3: Cross multiply
    18,749.31x = 28,091.56 × 9,851.41
  4. Step 4: Simplify right side
    18,749.31x = 276,741,464.55
  5. Step 5: Solve for x
    x = 276,741,464.55/18,749.31
  6. Step 6: Final answer
    x = 14,760.09

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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.