Home / 13,247.20-19,865.88-3,884.80

Finding the Fourth Proportional to 13,247.20, 19,865.88 and 3,884.80

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Solution

The fourth proportional to 13,247.20, 19,865.88 and 3,884.80 is: 5,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.20 : 19,865.88 = 3,884.80 : x
  2. Step 2: Convert to fraction form
    13,247.20/19,865.88 = 3,884.80/x
  3. Step 3: Cross multiply
    13,247.20x = 19,865.88 × 3,884.80
  4. Step 4: Simplify right side
    13,247.20x = 77,174,970.62
  5. Step 5: Solve for x
    x = 77,174,970.62/13,247.20
  6. Step 6: Final answer
    x = 5,825.76

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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.