Home / 12,244.21-18,357.28-3,919.41

Finding the Fourth Proportional to 12,244.21, 18,357.28 and 3,919.41

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Solution

The fourth proportional to 12,244.21, 18,357.28 and 3,919.41 is: 5,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.21 : 18,357.28 = 3,919.41 : x
  2. Step 2: Convert to fraction form
    12,244.21/18,357.28 = 3,919.41/x
  3. Step 3: Cross multiply
    12,244.21x = 18,357.28 × 3,919.41
  4. Step 4: Simplify right side
    12,244.21x = 71,949,595.42
  5. Step 5: Solve for x
    x = 71,949,595.42/12,244.21
  6. Step 6: Final answer
    x = 5,876.22

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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.