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Finding the Fourth Proportional to 18,175.44, 25,083 and 11,100.72

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Solution

The fourth proportional to 18,175.44, 25,083 and 11,100.72 is: 15,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.44 : 25,083 = 11,100.72 : x
  2. Step 2: Convert to fraction form
    18,175.44/25,083 = 11,100.72/x
  3. Step 3: Cross multiply
    18,175.44x = 25,083 × 11,100.72
  4. Step 4: Simplify right side
    18,175.44x = 278,439,359.76
  5. Step 5: Solve for x
    x = 278,439,359.76/18,175.44
  6. Step 6: Final answer
    x = 15,319.54

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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.