Home / 13,229.94-18,258.24-8,745.90

Finding the Fourth Proportional to 13,229.94, 18,258.24 and 8,745.90

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Solution

The fourth proportional to 13,229.94, 18,258.24 and 8,745.90 is: 12,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.94 : 18,258.24 = 8,745.90 : x
  2. Step 2: Convert to fraction form
    13,229.94/18,258.24 = 8,745.90/x
  3. Step 3: Cross multiply
    13,229.94x = 18,258.24 × 8,745.90
  4. Step 4: Simplify right side
    13,229.94x = 159,684,741.22
  5. Step 5: Solve for x
    x = 159,684,741.22/13,229.94
  6. Step 6: Final answer
    x = 12,069.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.