Home / 13,489.76-20,235.84-3,628.82

Finding the Fourth Proportional to 13,489.76, 20,235.84 and 3,628.82

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Solution

The fourth proportional to 13,489.76, 20,235.84 and 3,628.82 is: 5,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.76 : 20,235.84 = 3,628.82 : x
  2. Step 2: Convert to fraction form
    13,489.76/20,235.84 = 3,628.82/x
  3. Step 3: Cross multiply
    13,489.76x = 20,235.84 × 3,628.82
  4. Step 4: Simplify right side
    13,489.76x = 73,432,119.73
  5. Step 5: Solve for x
    x = 73,432,119.73/13,489.76
  6. Step 6: Final answer
    x = 5,443.55

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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.