Home / 13,440.75-20,161.22-4,206.75

Finding the Fourth Proportional to 13,440.75, 20,161.22 and 4,206.75

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Solution

The fourth proportional to 13,440.75, 20,161.22 and 4,206.75 is: 6,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.75 : 20,161.22 = 4,206.75 : x
  2. Step 2: Convert to fraction form
    13,440.75/20,161.22 = 4,206.75/x
  3. Step 3: Cross multiply
    13,440.75x = 20,161.22 × 4,206.75
  4. Step 4: Simplify right side
    13,440.75x = 84,813,212.24
  5. Step 5: Solve for x
    x = 84,813,212.24/13,440.75
  6. Step 6: Final answer
    x = 6,310.15

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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.