Home / 12,310.92-18,455.43-4,517.91

Finding the Fourth Proportional to 12,310.92, 18,455.43 and 4,517.91

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Solution

The fourth proportional to 12,310.92, 18,455.43 and 4,517.91 is: 6,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.92 : 18,455.43 = 4,517.91 : x
  2. Step 2: Convert to fraction form
    12,310.92/18,455.43 = 4,517.91/x
  3. Step 3: Cross multiply
    12,310.92x = 18,455.43 × 4,517.91
  4. Step 4: Simplify right side
    12,310.92x = 83,379,971.75
  5. Step 5: Solve for x
    x = 83,379,971.75/12,310.92
  6. Step 6: Final answer
    x = 6,772.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.