Home / 18,218.58-25,143.18-10,262.38

Finding the Fourth Proportional to 18,218.58, 25,143.18 and 10,262.38

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Solution

The fourth proportional to 18,218.58, 25,143.18 and 10,262.38 is: 14,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.58 : 25,143.18 = 10,262.38 : x
  2. Step 2: Convert to fraction form
    18,218.58/25,143.18 = 10,262.38/x
  3. Step 3: Cross multiply
    18,218.58x = 25,143.18 × 10,262.38
  4. Step 4: Simplify right side
    18,218.58x = 258,028,867.57
  5. Step 5: Solve for x
    x = 258,028,867.57/18,218.58
  6. Step 6: Final answer
    x = 14,162.95

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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.