Home / 18,633.44-25,714-10,135.56

Finding the Fourth Proportional to 18,633.44, 25,714 and 10,135.56

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Solution

The fourth proportional to 18,633.44, 25,714 and 10,135.56 is: 13,986.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.44 : 25,714 = 10,135.56 : x
  2. Step 2: Convert to fraction form
    18,633.44/25,714 = 10,135.56/x
  3. Step 3: Cross multiply
    18,633.44x = 25,714 × 10,135.56
  4. Step 4: Simplify right side
    18,633.44x = 260,625,789.84
  5. Step 5: Solve for x
    x = 260,625,789.84/18,633.44
  6. Step 6: Final answer
    x = 13,986.99

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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.