Home / 13,859.44-20,789.16-5,090.56

Finding the Fourth Proportional to 13,859.44, 20,789.16 and 5,090.56

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Solution

The fourth proportional to 13,859.44, 20,789.16 and 5,090.56 is: 7,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.44 : 20,789.16 = 5,090.56 : x
  2. Step 2: Convert to fraction form
    13,859.44/20,789.16 = 5,090.56/x
  3. Step 3: Cross multiply
    13,859.44x = 20,789.16 × 5,090.56
  4. Step 4: Simplify right side
    13,859.44x = 105,828,466.33
  5. Step 5: Solve for x
    x = 105,828,466.33/13,859.44
  6. Step 6: Final answer
    x = 7,635.84

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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.