Home / 8,389.44-12,588.26-3,391.60

Finding the Fourth Proportional to 8,389.44, 12,588.26 and 3,391.60

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Solution

The fourth proportional to 8,389.44, 12,588.26 and 3,391.60 is: 5,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.44 : 12,588.26 = 3,391.60 : x
  2. Step 2: Convert to fraction form
    8,389.44/12,588.26 = 3,391.60/x
  3. Step 3: Cross multiply
    8,389.44x = 12,588.26 × 3,391.60
  4. Step 4: Simplify right side
    8,389.44x = 42,694,342.62
  5. Step 5: Solve for x
    x = 42,694,342.62/8,389.44
  6. Step 6: Final answer
    x = 5,089.06

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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.