Home / 18,558.18-27,838.22-5,411.54

Finding the Fourth Proportional to 18,558.18, 27,838.22 and 5,411.54

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Solution

The fourth proportional to 18,558.18, 27,838.22 and 5,411.54 is: 8,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.18 : 27,838.22 = 5,411.54 : x
  2. Step 2: Convert to fraction form
    18,558.18/27,838.22 = 5,411.54/x
  3. Step 3: Cross multiply
    18,558.18x = 27,838.22 × 5,411.54
  4. Step 4: Simplify right side
    18,558.18x = 150,647,683.60
  5. Step 5: Solve for x
    x = 150,647,683.60/18,558.18
  6. Step 6: Final answer
    x = 8,117.59

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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.