Home / 13,964.28-20,948.70-5,080.44

Finding the Fourth Proportional to 13,964.28, 20,948.70 and 5,080.44

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Solution

The fourth proportional to 13,964.28, 20,948.70 and 5,080.44 is: 7,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.28 : 20,948.70 = 5,080.44 : x
  2. Step 2: Convert to fraction form
    13,964.28/20,948.70 = 5,080.44/x
  3. Step 3: Cross multiply
    13,964.28x = 20,948.70 × 5,080.44
  4. Step 4: Simplify right side
    13,964.28x = 106,428,613.43
  5. Step 5: Solve for x
    x = 106,428,613.43/13,964.28
  6. Step 6: Final answer
    x = 7,621.49

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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.