Home / 13,626.27-20,440.28-3,630.85

Finding the Fourth Proportional to 13,626.27, 20,440.28 and 3,630.85

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Solution

The fourth proportional to 13,626.27, 20,440.28 and 3,630.85 is: 5,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.27 : 20,440.28 = 3,630.85 : x
  2. Step 2: Convert to fraction form
    13,626.27/20,440.28 = 3,630.85/x
  3. Step 3: Cross multiply
    13,626.27x = 20,440.28 × 3,630.85
  4. Step 4: Simplify right side
    13,626.27x = 74,215,590.64
  5. Step 5: Solve for x
    x = 74,215,590.64/13,626.27
  6. Step 6: Final answer
    x = 5,446.51

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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.