Home / 11,163.06-15,404.46-6,448.86

Finding the Fourth Proportional to 11,163.06, 15,404.46 and 6,448.86

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Solution

The fourth proportional to 11,163.06, 15,404.46 and 6,448.86 is: 8,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.06 : 15,404.46 = 6,448.86 : x
  2. Step 2: Convert to fraction form
    11,163.06/15,404.46 = 6,448.86/x
  3. Step 3: Cross multiply
    11,163.06x = 15,404.46 × 6,448.86
  4. Step 4: Simplify right side
    11,163.06x = 99,341,205.92
  5. Step 5: Solve for x
    x = 99,341,205.92/11,163.06
  6. Step 6: Final answer
    x = 8,899.10

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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.