Home / 18,630.85-27,940.34-6,148.55

Finding the Fourth Proportional to 18,630.85, 27,940.34 and 6,148.55

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Solution

The fourth proportional to 18,630.85, 27,940.34 and 6,148.55 is: 9,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.85 : 27,940.34 = 6,148.55 : x
  2. Step 2: Convert to fraction form
    18,630.85/27,940.34 = 6,148.55/x
  3. Step 3: Cross multiply
    18,630.85x = 27,940.34 × 6,148.55
  4. Step 4: Simplify right side
    18,630.85x = 171,792,437.81
  5. Step 5: Solve for x
    x = 171,792,437.81/18,630.85
  6. Step 6: Final answer
    x = 9,220.86

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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.