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Finding the Fourth Proportional to 18,250.40, 27,375.60 and 10,877.60

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Solution

The fourth proportional to 18,250.40, 27,375.60 and 10,877.60 is: 16,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.40 : 27,375.60 = 10,877.60 : x
  2. Step 2: Convert to fraction form
    18,250.40/27,375.60 = 10,877.60/x
  3. Step 3: Cross multiply
    18,250.40x = 27,375.60 × 10,877.60
  4. Step 4: Simplify right side
    18,250.40x = 297,780,826.56
  5. Step 5: Solve for x
    x = 297,780,826.56/18,250.40
  6. Step 6: Final answer
    x = 16,316.40

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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.