Home / 12,425.21-18,633.85-4,103.67

Finding the Fourth Proportional to 12,425.21, 18,633.85 and 4,103.67

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Solution

The fourth proportional to 12,425.21, 18,633.85 and 4,103.67 is: 6,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.21 : 18,633.85 = 4,103.67 : x
  2. Step 2: Convert to fraction form
    12,425.21/18,633.85 = 4,103.67/x
  3. Step 3: Cross multiply
    12,425.21x = 18,633.85 × 4,103.67
  4. Step 4: Simplify right side
    12,425.21x = 76,467,150.71
  5. Step 5: Solve for x
    x = 76,467,150.71/12,425.21
  6. Step 6: Final answer
    x = 6,154.20

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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.