Home / 13,489.71-20,234.96-3,628.99

Finding the Fourth Proportional to 13,489.71, 20,234.96 and 3,628.99

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Solution

The fourth proportional to 13,489.71, 20,234.96 and 3,628.99 is: 5,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.71 : 20,234.96 = 3,628.99 : x
  2. Step 2: Convert to fraction form
    13,489.71/20,234.96 = 3,628.99/x
  3. Step 3: Cross multiply
    13,489.71x = 20,234.96 × 3,628.99
  4. Step 4: Simplify right side
    13,489.71x = 73,432,449.35
  5. Step 5: Solve for x
    x = 73,432,449.35/13,489.71
  6. Step 6: Final answer
    x = 5,443.59

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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.