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Finding the Fourth Proportional to 11,076.12, 15,300 and 8,853.57

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Solution

The fourth proportional to 11,076.12, 15,300 and 8,853.57 is: 12,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.12 : 15,300 = 8,853.57 : x
  2. Step 2: Convert to fraction form
    11,076.12/15,300 = 8,853.57/x
  3. Step 3: Cross multiply
    11,076.12x = 15,300 × 8,853.57
  4. Step 4: Simplify right side
    11,076.12x = 135,459,621
  5. Step 5: Solve for x
    x = 135,459,621/11,076.12
  6. Step 6: Final answer
    x = 12,229.88

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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.