Home / 11,906.50-16,431.88-6,602.34

Finding the Fourth Proportional to 11,906.50, 16,431.88 and 6,602.34

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Solution

The fourth proportional to 11,906.50, 16,431.88 and 6,602.34 is: 9,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.50 : 16,431.88 = 6,602.34 : x
  2. Step 2: Convert to fraction form
    11,906.50/16,431.88 = 6,602.34/x
  3. Step 3: Cross multiply
    11,906.50x = 16,431.88 × 6,602.34
  4. Step 4: Simplify right side
    11,906.50x = 108,488,858.60
  5. Step 5: Solve for x
    x = 108,488,858.60/11,906.50
  6. Step 6: Final answer
    x = 9,111.73

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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.