Home / 8,408.12-11,600.77-5,425.70

Finding the Fourth Proportional to 8,408.12, 11,600.77 and 5,425.70

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Solution

The fourth proportional to 8,408.12, 11,600.77 and 5,425.70 is: 7,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.12 : 11,600.77 = 5,425.70 : x
  2. Step 2: Convert to fraction form
    8,408.12/11,600.77 = 5,425.70/x
  3. Step 3: Cross multiply
    8,408.12x = 11,600.77 × 5,425.70
  4. Step 4: Simplify right side
    8,408.12x = 62,942,270.66
  5. Step 5: Solve for x
    x = 62,942,270.66/8,408.12
  6. Step 6: Final answer
    x = 7,485.89

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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.