Home / 12,149.54-18,183.16-7,472.52

Finding the Fourth Proportional to 12,149.54, 18,183.16 and 7,472.52

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Solution

The fourth proportional to 12,149.54, 18,183.16 and 7,472.52 is: 11,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.54 : 18,183.16 = 7,472.52 : x
  2. Step 2: Convert to fraction form
    12,149.54/18,183.16 = 7,472.52/x
  3. Step 3: Cross multiply
    12,149.54x = 18,183.16 × 7,472.52
  4. Step 4: Simplify right side
    12,149.54x = 135,873,898.48
  5. Step 5: Solve for x
    x = 135,873,898.48/12,149.54
  6. Step 6: Final answer
    x = 11,183.46

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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.