Home / 11,945.58-16,483.32-6,909

Finding the Fourth Proportional to 11,945.58, 16,483.32 and 6,909

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Solution

The fourth proportional to 11,945.58, 16,483.32 and 6,909 is: 9,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.58 : 16,483.32 = 6,909 : x
  2. Step 2: Convert to fraction form
    11,945.58/16,483.32 = 6,909/x
  3. Step 3: Cross multiply
    11,945.58x = 16,483.32 × 6,909
  4. Step 4: Simplify right side
    11,945.58x = 113,883,257.88
  5. Step 5: Solve for x
    x = 113,883,257.88/11,945.58
  6. Step 6: Final answer
    x = 9,533.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.