Home / 8,566.78-12,839.88-4,408.75

Finding the Fourth Proportional to 8,566.78, 12,839.88 and 4,408.75

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Solution

The fourth proportional to 8,566.78, 12,839.88 and 4,408.75 is: 6,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.78 : 12,839.88 = 4,408.75 : x
  2. Step 2: Convert to fraction form
    8,566.78/12,839.88 = 4,408.75/x
  3. Step 3: Cross multiply
    8,566.78x = 12,839.88 × 4,408.75
  4. Step 4: Simplify right side
    8,566.78x = 56,607,756.75
  5. Step 5: Solve for x
    x = 56,607,756.75/8,566.78
  6. Step 6: Final answer
    x = 6,607.83

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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.