Home / 8,275.35-11,419.30-4,871.82

Finding the Fourth Proportional to 8,275.35, 11,419.30 and 4,871.82

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Solution

The fourth proportional to 8,275.35, 11,419.30 and 4,871.82 is: 6,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.35 : 11,419.30 = 4,871.82 : x
  2. Step 2: Convert to fraction form
    8,275.35/11,419.30 = 4,871.82/x
  3. Step 3: Cross multiply
    8,275.35x = 11,419.30 × 4,871.82
  4. Step 4: Simplify right side
    8,275.35x = 55,632,704.85
  5. Step 5: Solve for x
    x = 55,632,704.85/8,275.35
  6. Step 6: Final answer
    x = 6,722.71

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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.