Home / 12,467.28-18,698.90-4,147.41

Finding the Fourth Proportional to 12,467.28, 18,698.90 and 4,147.41

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Solution

The fourth proportional to 12,467.28, 18,698.90 and 4,147.41 is: 6,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.28 : 18,698.90 = 4,147.41 : x
  2. Step 2: Convert to fraction form
    12,467.28/18,698.90 = 4,147.41/x
  3. Step 3: Cross multiply
    12,467.28x = 18,698.90 × 4,147.41
  4. Step 4: Simplify right side
    12,467.28x = 77,551,984.11
  5. Step 5: Solve for x
    x = 77,551,984.11/12,467.28
  6. Step 6: Final answer
    x = 6,220.44

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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.