Home / 8,922.05-13,379.61-4,759.78

Finding the Fourth Proportional to 8,922.05, 13,379.61 and 4,759.78

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Solution

The fourth proportional to 8,922.05, 13,379.61 and 4,759.78 is: 7,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.05 : 13,379.61 = 4,759.78 : x
  2. Step 2: Convert to fraction form
    8,922.05/13,379.61 = 4,759.78/x
  3. Step 3: Cross multiply
    8,922.05x = 13,379.61 × 4,759.78
  4. Step 4: Simplify right side
    8,922.05x = 63,684,050.26
  5. Step 5: Solve for x
    x = 63,684,050.26/8,922.05
  6. Step 6: Final answer
    x = 7,137.83

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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.