Home / 10,383.24-15,579.42-5,451.72

Finding the Fourth Proportional to 10,383.24, 15,579.42 and 5,451.72

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Solution

The fourth proportional to 10,383.24, 15,579.42 and 5,451.72 is: 8,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.24 : 15,579.42 = 5,451.72 : x
  2. Step 2: Convert to fraction form
    10,383.24/15,579.42 = 5,451.72/x
  3. Step 3: Cross multiply
    10,383.24x = 15,579.42 × 5,451.72
  4. Step 4: Simplify right side
    10,383.24x = 84,934,635.60
  5. Step 5: Solve for x
    x = 84,934,635.60/10,383.24
  6. Step 6: Final answer
    x = 8,179.97

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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.