Home / 8,930.97-12,311.33-5,940.45

Finding the Fourth Proportional to 8,930.97, 12,311.33 and 5,940.45

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Solution

The fourth proportional to 8,930.97, 12,311.33 and 5,940.45 is: 8,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.97 : 12,311.33 = 5,940.45 : x
  2. Step 2: Convert to fraction form
    8,930.97/12,311.33 = 5,940.45/x
  3. Step 3: Cross multiply
    8,930.97x = 12,311.33 × 5,940.45
  4. Step 4: Simplify right side
    8,930.97x = 73,134,810.60
  5. Step 5: Solve for x
    x = 73,134,810.60/8,930.97
  6. Step 6: Final answer
    x = 8,188.90

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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.