Home / 8,729.39-13,093.94-2,155.57

Finding the Fourth Proportional to 8,729.39, 13,093.94 and 2,155.57

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Solution

The fourth proportional to 8,729.39, 13,093.94 and 2,155.57 is: 3,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.39 : 13,093.94 = 2,155.57 : x
  2. Step 2: Convert to fraction form
    8,729.39/13,093.94 = 2,155.57/x
  3. Step 3: Cross multiply
    8,729.39x = 13,093.94 × 2,155.57
  4. Step 4: Simplify right side
    8,729.39x = 28,224,876.90
  5. Step 5: Solve for x
    x = 28,224,876.90/8,729.39
  6. Step 6: Final answer
    x = 3,233.32

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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.