Home / 8,728.85-13,093.30-2,155.04

Finding the Fourth Proportional to 8,728.85, 13,093.30 and 2,155.04

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Solution

The fourth proportional to 8,728.85, 13,093.30 and 2,155.04 is: 3,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.85 : 13,093.30 = 2,155.04 : x
  2. Step 2: Convert to fraction form
    8,728.85/13,093.30 = 2,155.04/x
  3. Step 3: Cross multiply
    8,728.85x = 13,093.30 × 2,155.04
  4. Step 4: Simplify right side
    8,728.85x = 28,216,538.83
  5. Step 5: Solve for x
    x = 28,216,538.83/8,728.85
  6. Step 6: Final answer
    x = 3,232.56

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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.