Home / 13,628.64-20,449.44-5,839.68

Finding the Fourth Proportional to 13,628.64, 20,449.44 and 5,839.68

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Solution

The fourth proportional to 13,628.64, 20,449.44 and 5,839.68 is: 8,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.64 : 20,449.44 = 5,839.68 : x
  2. Step 2: Convert to fraction form
    13,628.64/20,449.44 = 5,839.68/x
  3. Step 3: Cross multiply
    13,628.64x = 20,449.44 × 5,839.68
  4. Step 4: Simplify right side
    13,628.64x = 119,418,185.78
  5. Step 5: Solve for x
    x = 119,418,185.78/13,628.64
  6. Step 6: Final answer
    x = 8,762.30

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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.