Home / 13,626.32-20,420.56-6,212.68

Finding the Fourth Proportional to 13,626.32, 20,420.56 and 6,212.68

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Solution

The fourth proportional to 13,626.32, 20,420.56 and 6,212.68 is: 9,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.32 : 20,420.56 = 6,212.68 : x
  2. Step 2: Convert to fraction form
    13,626.32/20,420.56 = 6,212.68/x
  3. Step 3: Cross multiply
    13,626.32x = 20,420.56 × 6,212.68
  4. Step 4: Simplify right side
    13,626.32x = 126,866,404.70
  5. Step 5: Solve for x
    x = 126,866,404.70/13,626.32
  6. Step 6: Final answer
    x = 9,310.39

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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.