Home / 13,449.99-20,169.96-3,959.49

Finding the Fourth Proportional to 13,449.99, 20,169.96 and 3,959.49

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Solution

The fourth proportional to 13,449.99, 20,169.96 and 3,959.49 is: 5,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.99 : 20,169.96 = 3,959.49 : x
  2. Step 2: Convert to fraction form
    13,449.99/20,169.96 = 3,959.49/x
  3. Step 3: Cross multiply
    13,449.99x = 20,169.96 × 3,959.49
  4. Step 4: Simplify right side
    13,449.99x = 79,862,754.92
  5. Step 5: Solve for x
    x = 79,862,754.92/13,449.99
  6. Step 6: Final answer
    x = 5,937.76

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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.