Home / 12,993.21-19,489.95-3,633.26

Finding the Fourth Proportional to 12,993.21, 19,489.95 and 3,633.26

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Solution

The fourth proportional to 12,993.21, 19,489.95 and 3,633.26 is: 5,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.21 : 19,489.95 = 3,633.26 : x
  2. Step 2: Convert to fraction form
    12,993.21/19,489.95 = 3,633.26/x
  3. Step 3: Cross multiply
    12,993.21x = 19,489.95 × 3,633.26
  4. Step 4: Simplify right side
    12,993.21x = 70,811,958.29
  5. Step 5: Solve for x
    x = 70,811,958.29/12,993.21
  6. Step 6: Final answer
    x = 5,449.92

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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.