Home / 8,403.38-12,605.10-3,786.38

Finding the Fourth Proportional to 8,403.38, 12,605.10 and 3,786.38

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Solution

The fourth proportional to 8,403.38, 12,605.10 and 3,786.38 is: 5,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.38 : 12,605.10 = 3,786.38 : x
  2. Step 2: Convert to fraction form
    8,403.38/12,605.10 = 3,786.38/x
  3. Step 3: Cross multiply
    8,403.38x = 12,605.10 × 3,786.38
  4. Step 4: Simplify right side
    8,403.38x = 47,727,698.54
  5. Step 5: Solve for x
    x = 47,727,698.54/8,403.38
  6. Step 6: Final answer
    x = 5,679.58

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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.