Home / 11,791.36-17,682.18-4,861

Finding the Fourth Proportional to 11,791.36, 17,682.18 and 4,861

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Solution

The fourth proportional to 11,791.36, 17,682.18 and 4,861 is: 7,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.36 : 17,682.18 = 4,861 : x
  2. Step 2: Convert to fraction form
    11,791.36/17,682.18 = 4,861/x
  3. Step 3: Cross multiply
    11,791.36x = 17,682.18 × 4,861
  4. Step 4: Simplify right side
    11,791.36x = 85,953,076.98
  5. Step 5: Solve for x
    x = 85,953,076.98/11,791.36
  6. Step 6: Final answer
    x = 7,289.50

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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.