Home / 11,079.48-15,286.30-6,299.06

Finding the Fourth Proportional to 11,079.48, 15,286.30 and 6,299.06

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Solution

The fourth proportional to 11,079.48, 15,286.30 and 6,299.06 is: 8,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.48 : 15,286.30 = 6,299.06 : x
  2. Step 2: Convert to fraction form
    11,079.48/15,286.30 = 6,299.06/x
  3. Step 3: Cross multiply
    11,079.48x = 15,286.30 × 6,299.06
  4. Step 4: Simplify right side
    11,079.48x = 96,289,320.88
  5. Step 5: Solve for x
    x = 96,289,320.88/11,079.48
  6. Step 6: Final answer
    x = 8,690.78

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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.