Home / 18,874.14-28,311.30-5,726.63

Finding the Fourth Proportional to 18,874.14, 28,311.30 and 5,726.63

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Solution

The fourth proportional to 18,874.14, 28,311.30 and 5,726.63 is: 8,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.14 : 28,311.30 = 5,726.63 : x
  2. Step 2: Convert to fraction form
    18,874.14/28,311.30 = 5,726.63/x
  3. Step 3: Cross multiply
    18,874.14x = 28,311.30 × 5,726.63
  4. Step 4: Simplify right side
    18,874.14x = 162,128,198.36
  5. Step 5: Solve for x
    x = 162,128,198.36/18,874.14
  6. Step 6: Final answer
    x = 8,589.96

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1.5x scale

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.