Home / 12,340.53-18,511.20-4,440.60

Finding the Fourth Proportional to 12,340.53, 18,511.20 and 4,440.60

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Solution

The fourth proportional to 12,340.53, 18,511.20 and 4,440.60 is: 6,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.53 : 18,511.20 = 4,440.60 : x
  2. Step 2: Convert to fraction form
    12,340.53/18,511.20 = 4,440.60/x
  3. Step 3: Cross multiply
    12,340.53x = 18,511.20 × 4,440.60
  4. Step 4: Simplify right side
    12,340.53x = 82,200,834.72
  5. Step 5: Solve for x
    x = 82,200,834.72/12,340.53
  6. Step 6: Final answer
    x = 6,661.05

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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.