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Finding the Fourth Proportional to 18,503, 25,546.46 and 10,951.76

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Solution

The fourth proportional to 18,503, 25,546.46 and 10,951.76 is: 15,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503 : 25,546.46 = 10,951.76 : x
  2. Step 2: Convert to fraction form
    18,503/25,546.46 = 10,951.76/x
  3. Step 3: Cross multiply
    18,503x = 25,546.46 × 10,951.76
  4. Step 4: Simplify right side
    18,503x = 279,778,698.77
  5. Step 5: Solve for x
    x = 279,778,698.77/18,503
  6. Step 6: Final answer
    x = 15,120.72

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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.