Home / 18,258.58-25,198.02-10,300.64

Finding the Fourth Proportional to 18,258.58, 25,198.02 and 10,300.64

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Solution

The fourth proportional to 18,258.58, 25,198.02 and 10,300.64 is: 14,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.58 : 25,198.02 = 10,300.64 : x
  2. Step 2: Convert to fraction form
    18,258.58/25,198.02 = 10,300.64/x
  3. Step 3: Cross multiply
    18,258.58x = 25,198.02 × 10,300.64
  4. Step 4: Simplify right side
    18,258.58x = 259,555,732.73
  5. Step 5: Solve for x
    x = 259,555,732.73/18,258.58
  6. Step 6: Final answer
    x = 14,215.55

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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.