Home / 13,491.89-20,225.49-4,722.02

Finding the Fourth Proportional to 13,491.89, 20,225.49 and 4,722.02

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Solution

The fourth proportional to 13,491.89, 20,225.49 and 4,722.02 is: 7,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.89 : 20,225.49 = 4,722.02 : x
  2. Step 2: Convert to fraction form
    13,491.89/20,225.49 = 4,722.02/x
  3. Step 3: Cross multiply
    13,491.89x = 20,225.49 × 4,722.02
  4. Step 4: Simplify right side
    13,491.89x = 95,505,067.16
  5. Step 5: Solve for x
    x = 95,505,067.16/13,491.89
  6. Step 6: Final answer
    x = 7,078.70

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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.