Home / 12,022-18,025.70-5,439.12

Finding the Fourth Proportional to 12,022, 18,025.70 and 5,439.12

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Solution

The fourth proportional to 12,022, 18,025.70 and 5,439.12 is: 8,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022 : 18,025.70 = 5,439.12 : x
  2. Step 2: Convert to fraction form
    12,022/18,025.70 = 5,439.12/x
  3. Step 3: Cross multiply
    12,022x = 18,025.70 × 5,439.12
  4. Step 4: Simplify right side
    12,022x = 98,043,945.38
  5. Step 5: Solve for x
    x = 98,043,945.38/12,022
  6. Step 6: Final answer
    x = 8,155.38

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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.