Home / 18,739.58-28,106.12-7,052.90

Finding the Fourth Proportional to 18,739.58, 28,106.12 and 7,052.90

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Solution

The fourth proportional to 18,739.58, 28,106.12 and 7,052.90 is: 10,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.58 : 28,106.12 = 7,052.90 : x
  2. Step 2: Convert to fraction form
    18,739.58/28,106.12 = 7,052.90/x
  3. Step 3: Cross multiply
    18,739.58x = 28,106.12 × 7,052.90
  4. Step 4: Simplify right side
    18,739.58x = 198,229,530.85
  5. Step 5: Solve for x
    x = 198,229,530.85/18,739.58
  6. Step 6: Final answer
    x = 10,578.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.