Home / 12,258.64-18,382.44-3,491.56

Finding the Fourth Proportional to 12,258.64, 18,382.44 and 3,491.56

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Solution

The fourth proportional to 12,258.64, 18,382.44 and 3,491.56 is: 5,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.64 : 18,382.44 = 3,491.56 : x
  2. Step 2: Convert to fraction form
    12,258.64/18,382.44 = 3,491.56/x
  3. Step 3: Cross multiply
    12,258.64x = 18,382.44 × 3,491.56
  4. Step 4: Simplify right side
    12,258.64x = 64,183,392.21
  5. Step 5: Solve for x
    x = 64,183,392.21/12,258.64
  6. Step 6: Final answer
    x = 5,235.77

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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.