Home / 13,423.75-20,134.06-3,563.79

Finding the Fourth Proportional to 13,423.75, 20,134.06 and 3,563.79

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Solution

The fourth proportional to 13,423.75, 20,134.06 and 3,563.79 is: 5,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.75 : 20,134.06 = 3,563.79 : x
  2. Step 2: Convert to fraction form
    13,423.75/20,134.06 = 3,563.79/x
  3. Step 3: Cross multiply
    13,423.75x = 20,134.06 × 3,563.79
  4. Step 4: Simplify right side
    13,423.75x = 71,753,561.69
  5. Step 5: Solve for x
    x = 71,753,561.69/13,423.75
  6. Step 6: Final answer
    x = 5,345.27

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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.