Home / 12,256.58-18,246.25-12,183.68

Finding the Fourth Proportional to 12,256.58, 18,246.25 and 12,183.68

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Solution

The fourth proportional to 12,256.58, 18,246.25 and 12,183.68 is: 18,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.58 : 18,246.25 = 12,183.68 : x
  2. Step 2: Convert to fraction form
    12,256.58/18,246.25 = 12,183.68/x
  3. Step 3: Cross multiply
    12,256.58x = 18,246.25 × 12,183.68
  4. Step 4: Simplify right side
    12,256.58x = 222,306,410.28
  5. Step 5: Solve for x
    x = 222,306,410.28/12,256.58
  6. Step 6: Final answer
    x = 18,137.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.