Home / 18,739.46-28,112.24-8,754.19

Finding the Fourth Proportional to 18,739.46, 28,112.24 and 8,754.19

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Solution

The fourth proportional to 18,739.46, 28,112.24 and 8,754.19 is: 13,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.46 : 28,112.24 = 8,754.19 : x
  2. Step 2: Convert to fraction form
    18,739.46/28,112.24 = 8,754.19/x
  3. Step 3: Cross multiply
    18,739.46x = 28,112.24 × 8,754.19
  4. Step 4: Simplify right side
    18,739.46x = 246,099,890.29
  5. Step 5: Solve for x
    x = 246,099,890.29/18,739.46
  6. Step 6: Final answer
    x = 13,132.71

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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.