Home / 9,289.41-12,819.60-5,310.89

Finding the Fourth Proportional to 9,289.41, 12,819.60 and 5,310.89

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Solution

The fourth proportional to 9,289.41, 12,819.60 and 5,310.89 is: 7,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.41 : 12,819.60 = 5,310.89 : x
  2. Step 2: Convert to fraction form
    9,289.41/12,819.60 = 5,310.89/x
  3. Step 3: Cross multiply
    9,289.41x = 12,819.60 × 5,310.89
  4. Step 4: Simplify right side
    9,289.41x = 68,083,469.42
  5. Step 5: Solve for x
    x = 68,083,469.42/9,289.41
  6. Step 6: Final answer
    x = 7,329.15

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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.