Home / 11,123.32-15,363.68-8,796.28

Finding the Fourth Proportional to 11,123.32, 15,363.68 and 8,796.28

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Solution

The fourth proportional to 11,123.32, 15,363.68 and 8,796.28 is: 12,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.32 : 15,363.68 = 8,796.28 : x
  2. Step 2: Convert to fraction form
    11,123.32/15,363.68 = 8,796.28/x
  3. Step 3: Cross multiply
    11,123.32x = 15,363.68 × 8,796.28
  4. Step 4: Simplify right side
    11,123.32x = 135,143,231.11
  5. Step 5: Solve for x
    x = 135,143,231.11/11,123.32
  6. Step 6: Final answer
    x = 12,149.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.