Home / 13,469.31-20,204.46-6,887.79

Finding the Fourth Proportional to 13,469.31, 20,204.46 and 6,887.79

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Solution

The fourth proportional to 13,469.31, 20,204.46 and 6,887.79 is: 10,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.31 : 20,204.46 = 6,887.79 : x
  2. Step 2: Convert to fraction form
    13,469.31/20,204.46 = 6,887.79/x
  3. Step 3: Cross multiply
    13,469.31x = 20,204.46 × 6,887.79
  4. Step 4: Simplify right side
    13,469.31x = 139,164,077.54
  5. Step 5: Solve for x
    x = 139,164,077.54/13,469.31
  6. Step 6: Final answer
    x = 10,331.94

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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.