Home / 8,721.75-13,067.58-4,775.85

Finding the Fourth Proportional to 8,721.75, 13,067.58 and 4,775.85

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Solution

The fourth proportional to 8,721.75, 13,067.58 and 4,775.85 is: 7,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.75 : 13,067.58 = 4,775.85 : x
  2. Step 2: Convert to fraction form
    8,721.75/13,067.58 = 4,775.85/x
  3. Step 3: Cross multiply
    8,721.75x = 13,067.58 × 4,775.85
  4. Step 4: Simplify right side
    8,721.75x = 62,408,756.24
  5. Step 5: Solve for x
    x = 62,408,756.24/8,721.75
  6. Step 6: Final answer
    x = 7,155.53

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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.