Home / 11,224.78-15,489.01-6,188.70

Finding the Fourth Proportional to 11,224.78, 15,489.01 and 6,188.70

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Solution

The fourth proportional to 11,224.78, 15,489.01 and 6,188.70 is: 8,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.78 : 15,489.01 = 6,188.70 : x
  2. Step 2: Convert to fraction form
    11,224.78/15,489.01 = 6,188.70/x
  3. Step 3: Cross multiply
    11,224.78x = 15,489.01 × 6,188.70
  4. Step 4: Simplify right side
    11,224.78x = 95,856,919.41
  5. Step 5: Solve for x
    x = 95,856,919.41/11,224.78
  6. Step 6: Final answer
    x = 8,539.76

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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.