Home / 18,739.52-25,857.96-10,778.88

Finding the Fourth Proportional to 18,739.52, 25,857.96 and 10,778.88

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Solution

The fourth proportional to 18,739.52, 25,857.96 and 10,778.88 is: 14,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.52 : 25,857.96 = 10,778.88 : x
  2. Step 2: Convert to fraction form
    18,739.52/25,857.96 = 10,778.88/x
  3. Step 3: Cross multiply
    18,739.52x = 25,857.96 × 10,778.88
  4. Step 4: Simplify right side
    18,739.52x = 278,719,847.88
  5. Step 5: Solve for x
    x = 278,719,847.88/18,739.52
  6. Step 6: Final answer
    x = 14,873.37

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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.