Home / 18,221.42-25,145.70-10,262.90

Finding the Fourth Proportional to 18,221.42, 25,145.70 and 10,262.90

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Solution

The fourth proportional to 18,221.42, 25,145.70 and 10,262.90 is: 14,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.42 : 25,145.70 = 10,262.90 : x
  2. Step 2: Convert to fraction form
    18,221.42/25,145.70 = 10,262.90/x
  3. Step 3: Cross multiply
    18,221.42x = 25,145.70 × 10,262.90
  4. Step 4: Simplify right side
    18,221.42x = 258,067,804.53
  5. Step 5: Solve for x
    x = 258,067,804.53/18,221.42
  6. Step 6: Final answer
    x = 14,162.88

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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.