Home / 8,747.20-13,115.98-5,977

Finding the Fourth Proportional to 8,747.20, 13,115.98 and 5,977

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Solution

The fourth proportional to 8,747.20, 13,115.98 and 5,977 is: 8,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.20 : 13,115.98 = 5,977 : x
  2. Step 2: Convert to fraction form
    8,747.20/13,115.98 = 5,977/x
  3. Step 3: Cross multiply
    8,747.20x = 13,115.98 × 5,977
  4. Step 4: Simplify right side
    8,747.20x = 78,394,212.46
  5. Step 5: Solve for x
    x = 78,394,212.46/8,747.20
  6. Step 6: Final answer
    x = 8,962.21

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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.