Home / 8,199.28-12,299.64-2,652.76

Finding the Fourth Proportional to 8,199.28, 12,299.64 and 2,652.76

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Solution

The fourth proportional to 8,199.28, 12,299.64 and 2,652.76 is: 3,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.28 : 12,299.64 = 2,652.76 : x
  2. Step 2: Convert to fraction form
    8,199.28/12,299.64 = 2,652.76/x
  3. Step 3: Cross multiply
    8,199.28x = 12,299.64 × 2,652.76
  4. Step 4: Simplify right side
    8,199.28x = 32,627,993.01
  5. Step 5: Solve for x
    x = 32,627,993.01/8,199.28
  6. Step 6: Final answer
    x = 3,979.37

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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.