Home / 8,221.70-11,352.22-6,330.36

Finding the Fourth Proportional to 8,221.70, 11,352.22 and 6,330.36

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Solution

The fourth proportional to 8,221.70, 11,352.22 and 6,330.36 is: 8,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.70 : 11,352.22 = 6,330.36 : x
  2. Step 2: Convert to fraction form
    8,221.70/11,352.22 = 6,330.36/x
  3. Step 3: Cross multiply
    8,221.70x = 11,352.22 × 6,330.36
  4. Step 4: Simplify right side
    8,221.70x = 71,863,639.40
  5. Step 5: Solve for x
    x = 71,863,639.40/8,221.70
  6. Step 6: Final answer
    x = 8,740.73

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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.