Home / 11,906.21-16,444.02-8,122.88

Finding the Fourth Proportional to 11,906.21, 16,444.02 and 8,122.88

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Solution

The fourth proportional to 11,906.21, 16,444.02 and 8,122.88 is: 11,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.21 : 16,444.02 = 8,122.88 : x
  2. Step 2: Convert to fraction form
    11,906.21/16,444.02 = 8,122.88/x
  3. Step 3: Cross multiply
    11,906.21x = 16,444.02 × 8,122.88
  4. Step 4: Simplify right side
    11,906.21x = 133,572,801.18
  5. Step 5: Solve for x
    x = 133,572,801.18/11,906.21
  6. Step 6: Final answer
    x = 11,218.75

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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.