Home / 13,658.30-20,480.58-6,633.90

Finding the Fourth Proportional to 13,658.30, 20,480.58 and 6,633.90

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Solution

The fourth proportional to 13,658.30, 20,480.58 and 6,633.90 is: 9,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.30 : 20,480.58 = 6,633.90 : x
  2. Step 2: Convert to fraction form
    13,658.30/20,480.58 = 6,633.90/x
  3. Step 3: Cross multiply
    13,658.30x = 20,480.58 × 6,633.90
  4. Step 4: Simplify right side
    13,658.30x = 135,866,119.66
  5. Step 5: Solve for x
    x = 135,866,119.66/13,658.30
  6. Step 6: Final answer
    x = 9,947.51

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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.