Home / 8,216.71-11,338.89-4,631.85

Finding the Fourth Proportional to 8,216.71, 11,338.89 and 4,631.85

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Solution

The fourth proportional to 8,216.71, 11,338.89 and 4,631.85 is: 6,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.71 : 11,338.89 = 4,631.85 : x
  2. Step 2: Convert to fraction form
    8,216.71/11,338.89 = 4,631.85/x
  3. Step 3: Cross multiply
    8,216.71x = 11,338.89 × 4,631.85
  4. Step 4: Simplify right side
    8,216.71x = 52,520,020.28
  5. Step 5: Solve for x
    x = 52,520,020.28/8,216.71
  6. Step 6: Final answer
    x = 6,391.86

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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.