Home / 8,930.90-13,394.64-3,086.30

Finding the Fourth Proportional to 8,930.90, 13,394.64 and 3,086.30

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Solution

The fourth proportional to 8,930.90, 13,394.64 and 3,086.30 is: 4,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.90 : 13,394.64 = 3,086.30 : x
  2. Step 2: Convert to fraction form
    8,930.90/13,394.64 = 3,086.30/x
  3. Step 3: Cross multiply
    8,930.90x = 13,394.64 × 3,086.30
  4. Step 4: Simplify right side
    8,930.90x = 41,339,877.43
  5. Step 5: Solve for x
    x = 41,339,877.43/8,930.90
  6. Step 6: Final answer
    x = 4,628.86

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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.