Home / 18,977.24-28,462.56-5,123

Finding the Fourth Proportional to 18,977.24, 28,462.56 and 5,123

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Solution

The fourth proportional to 18,977.24, 28,462.56 and 5,123 is: 7,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.24 : 28,462.56 = 5,123 : x
  2. Step 2: Convert to fraction form
    18,977.24/28,462.56 = 5,123/x
  3. Step 3: Cross multiply
    18,977.24x = 28,462.56 × 5,123
  4. Step 4: Simplify right side
    18,977.24x = 145,813,694.88
  5. Step 5: Solve for x
    x = 145,813,694.88/18,977.24
  6. Step 6: Final answer
    x = 7,683.61

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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.