Home / 13,366.28-20,027.52-7,119.70

Finding the Fourth Proportional to 13,366.28, 20,027.52 and 7,119.70

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Solution

The fourth proportional to 13,366.28, 20,027.52 and 7,119.70 is: 10,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.28 : 20,027.52 = 7,119.70 : x
  2. Step 2: Convert to fraction form
    13,366.28/20,027.52 = 7,119.70/x
  3. Step 3: Cross multiply
    13,366.28x = 20,027.52 × 7,119.70
  4. Step 4: Simplify right side
    13,366.28x = 142,589,884.08
  5. Step 5: Solve for x
    x = 142,589,884.08/13,366.28
  6. Step 6: Final answer
    x = 10,667.88

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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.