Home / 13,180.06-19,771.11-3,820.21

Finding the Fourth Proportional to 13,180.06, 19,771.11 and 3,820.21

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Solution

The fourth proportional to 13,180.06, 19,771.11 and 3,820.21 is: 5,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.06 : 19,771.11 = 3,820.21 : x
  2. Step 2: Convert to fraction form
    13,180.06/19,771.11 = 3,820.21/x
  3. Step 3: Cross multiply
    13,180.06x = 19,771.11 × 3,820.21
  4. Step 4: Simplify right side
    13,180.06x = 75,529,792.13
  5. Step 5: Solve for x
    x = 75,529,792.13/13,180.06
  6. Step 6: Final answer
    x = 5,730.61

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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.