Home / 12,027.78-18,044.41-5,455.85

Finding the Fourth Proportional to 12,027.78, 18,044.41 and 5,455.85

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Solution

The fourth proportional to 12,027.78, 18,044.41 and 5,455.85 is: 8,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.78 : 18,044.41 = 5,455.85 : x
  2. Step 2: Convert to fraction form
    12,027.78/18,044.41 = 5,455.85/x
  3. Step 3: Cross multiply
    12,027.78x = 18,044.41 × 5,455.85
  4. Step 4: Simplify right side
    12,027.78x = 98,447,535.55
  5. Step 5: Solve for x
    x = 98,447,535.55/12,027.78
  6. Step 6: Final answer
    x = 8,185.01

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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.