Home / 18,739.28-25,859.04-10,355.96

Finding the Fourth Proportional to 18,739.28, 25,859.04 and 10,355.96

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Solution

The fourth proportional to 18,739.28, 25,859.04 and 10,355.96 is: 14,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.28 : 25,859.04 = 10,355.96 : x
  2. Step 2: Convert to fraction form
    18,739.28/25,859.04 = 10,355.96/x
  3. Step 3: Cross multiply
    18,739.28x = 25,859.04 × 10,355.96
  4. Step 4: Simplify right side
    18,739.28x = 267,795,183.88
  5. Step 5: Solve for x
    x = 267,795,183.88/18,739.28
  6. Step 6: Final answer
    x = 14,290.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.