Home / 12,803.24-19,207.71-3,919.81

Finding the Fourth Proportional to 12,803.24, 19,207.71 and 3,919.81

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Solution

The fourth proportional to 12,803.24, 19,207.71 and 3,919.81 is: 5,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.24 : 19,207.71 = 3,919.81 : x
  2. Step 2: Convert to fraction form
    12,803.24/19,207.71 = 3,919.81/x
  3. Step 3: Cross multiply
    12,803.24x = 19,207.71 × 3,919.81
  4. Step 4: Simplify right side
    12,803.24x = 75,290,640.21
  5. Step 5: Solve for x
    x = 75,290,640.21/12,803.24
  6. Step 6: Final answer
    x = 5,880.59

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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.