Home / 8,426.23-12,639.39-3,745.14

Finding the Fourth Proportional to 8,426.23, 12,639.39 and 3,745.14

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Solution

The fourth proportional to 8,426.23, 12,639.39 and 3,745.14 is: 5,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.23 : 12,639.39 = 3,745.14 : x
  2. Step 2: Convert to fraction form
    8,426.23/12,639.39 = 3,745.14/x
  3. Step 3: Cross multiply
    8,426.23x = 12,639.39 × 3,745.14
  4. Step 4: Simplify right side
    8,426.23x = 47,336,244.69
  5. Step 5: Solve for x
    x = 47,336,244.69/8,426.23
  6. Step 6: Final answer
    x = 5,617.73

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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.