Home / 11,125.68-15,355.32-6,412.70

Finding the Fourth Proportional to 11,125.68, 15,355.32 and 6,412.70

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Solution

The fourth proportional to 11,125.68, 15,355.32 and 6,412.70 is: 8,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.68 : 15,355.32 = 6,412.70 : x
  2. Step 2: Convert to fraction form
    11,125.68/15,355.32 = 6,412.70/x
  3. Step 3: Cross multiply
    11,125.68x = 15,355.32 × 6,412.70
  4. Step 4: Simplify right side
    11,125.68x = 98,469,060.56
  5. Step 5: Solve for x
    x = 98,469,060.56/11,125.68
  6. Step 6: Final answer
    x = 8,850.61

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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.