Home / 18,650.44-27,972.60-5,499.78

Finding the Fourth Proportional to 18,650.44, 27,972.60 and 5,499.78

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Solution

The fourth proportional to 18,650.44, 27,972.60 and 5,499.78 is: 8,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.44 : 27,972.60 = 5,499.78 : x
  2. Step 2: Convert to fraction form
    18,650.44/27,972.60 = 5,499.78/x
  3. Step 3: Cross multiply
    18,650.44x = 27,972.60 × 5,499.78
  4. Step 4: Simplify right side
    18,650.44x = 153,843,146.03
  5. Step 5: Solve for x
    x = 153,843,146.03/18,650.44
  6. Step 6: Final answer
    x = 8,248.77

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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.