Home / 8,311.61-11,480.96-6,162.51

Finding the Fourth Proportional to 8,311.61, 11,480.96 and 6,162.51

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Solution

The fourth proportional to 8,311.61, 11,480.96 and 6,162.51 is: 8,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.61 : 11,480.96 = 6,162.51 : x
  2. Step 2: Convert to fraction form
    8,311.61/11,480.96 = 6,162.51/x
  3. Step 3: Cross multiply
    8,311.61x = 11,480.96 × 6,162.51
  4. Step 4: Simplify right side
    8,311.61x = 70,751,500.00
  5. Step 5: Solve for x
    x = 70,751,500.00/8,311.61
  6. Step 6: Final answer
    x = 8,512.38

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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.