Home / 13,839.44-20,742.36-9,935.76

Finding the Fourth Proportional to 13,839.44, 20,742.36 and 9,935.76

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Solution

The fourth proportional to 13,839.44, 20,742.36 and 9,935.76 is: 14,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.44 : 20,742.36 = 9,935.76 : x
  2. Step 2: Convert to fraction form
    13,839.44/20,742.36 = 9,935.76/x
  3. Step 3: Cross multiply
    13,839.44x = 20,742.36 × 9,935.76
  4. Step 4: Simplify right side
    13,839.44x = 206,091,110.79
  5. Step 5: Solve for x
    x = 206,091,110.79/13,839.44
  6. Step 6: Final answer
    x = 14,891.58

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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.