Home / 13,856.11-20,784.21-3,467.86

Finding the Fourth Proportional to 13,856.11, 20,784.21 and 3,467.86

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Solution

The fourth proportional to 13,856.11, 20,784.21 and 3,467.86 is: 5,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.11 : 20,784.21 = 3,467.86 : x
  2. Step 2: Convert to fraction form
    13,856.11/20,784.21 = 3,467.86/x
  3. Step 3: Cross multiply
    13,856.11x = 20,784.21 × 3,467.86
  4. Step 4: Simplify right side
    13,856.11x = 72,076,730.49
  5. Step 5: Solve for x
    x = 72,076,730.49/13,856.11
  6. Step 6: Final answer
    x = 5,201.80

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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.