Home / 13,489.79-20,234.61-3,628.26

Finding the Fourth Proportional to 13,489.79, 20,234.61 and 3,628.26

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Solution

The fourth proportional to 13,489.79, 20,234.61 and 3,628.26 is: 5,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.79 : 20,234.61 = 3,628.26 : x
  2. Step 2: Convert to fraction form
    13,489.79/20,234.61 = 3,628.26/x
  3. Step 3: Cross multiply
    13,489.79x = 20,234.61 × 3,628.26
  4. Step 4: Simplify right side
    13,489.79x = 73,416,426.08
  5. Step 5: Solve for x
    x = 73,416,426.08/13,489.79
  6. Step 6: Final answer
    x = 5,442.37

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1.5x scale

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.