Home / 8,390.85-12,588.09-4,002.27

Finding the Fourth Proportional to 8,390.85, 12,588.09 and 4,002.27

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Solution

The fourth proportional to 8,390.85, 12,588.09 and 4,002.27 is: 6,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.85 : 12,588.09 = 4,002.27 : x
  2. Step 2: Convert to fraction form
    8,390.85/12,588.09 = 4,002.27/x
  3. Step 3: Cross multiply
    8,390.85x = 12,588.09 × 4,002.27
  4. Step 4: Simplify right side
    8,390.85x = 50,380,934.96
  5. Step 5: Solve for x
    x = 50,380,934.96/8,390.85
  6. Step 6: Final answer
    x = 6,004.27

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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.