Home / 13,790.03-20,682.30-3,792.18

Finding the Fourth Proportional to 13,790.03, 20,682.30 and 3,792.18

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Solution

The fourth proportional to 13,790.03, 20,682.30 and 3,792.18 is: 5,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.03 : 20,682.30 = 3,792.18 : x
  2. Step 2: Convert to fraction form
    13,790.03/20,682.30 = 3,792.18/x
  3. Step 3: Cross multiply
    13,790.03x = 20,682.30 × 3,792.18
  4. Step 4: Simplify right side
    13,790.03x = 78,431,096.19
  5. Step 5: Solve for x
    x = 78,431,096.19/13,790.03
  6. Step 6: Final answer
    x = 5,687.52

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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.