Home / 13,760.06-20,640.51-3,898.31

Finding the Fourth Proportional to 13,760.06, 20,640.51 and 3,898.31

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Solution

The fourth proportional to 13,760.06, 20,640.51 and 3,898.31 is: 5,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.06 : 20,640.51 = 3,898.31 : x
  2. Step 2: Convert to fraction form
    13,760.06/20,640.51 = 3,898.31/x
  3. Step 3: Cross multiply
    13,760.06x = 20,640.51 × 3,898.31
  4. Step 4: Simplify right side
    13,760.06x = 80,463,003.34
  5. Step 5: Solve for x
    x = 80,463,003.34/13,760.06
  6. Step 6: Final answer
    x = 5,847.58

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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.