Home / 9,341.22-12,890.97-5,149.62

Finding the Fourth Proportional to 9,341.22, 12,890.97 and 5,149.62

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Solution

The fourth proportional to 9,341.22, 12,890.97 and 5,149.62 is: 7,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.22 : 12,890.97 = 5,149.62 : x
  2. Step 2: Convert to fraction form
    9,341.22/12,890.97 = 5,149.62/x
  3. Step 3: Cross multiply
    9,341.22x = 12,890.97 × 5,149.62
  4. Step 4: Simplify right side
    9,341.22x = 66,383,596.93
  5. Step 5: Solve for x
    x = 66,383,596.93/9,341.22
  6. Step 6: Final answer
    x = 7,106.52

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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.