Home / 13,144.38-19,705.44-6,120.72

Finding the Fourth Proportional to 13,144.38, 19,705.44 and 6,120.72

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Solution

The fourth proportional to 13,144.38, 19,705.44 and 6,120.72 is: 9,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.38 : 19,705.44 = 6,120.72 : x
  2. Step 2: Convert to fraction form
    13,144.38/19,705.44 = 6,120.72/x
  3. Step 3: Cross multiply
    13,144.38x = 19,705.44 × 6,120.72
  4. Step 4: Simplify right side
    13,144.38x = 120,611,480.72
  5. Step 5: Solve for x
    x = 120,611,480.72/13,144.38
  6. Step 6: Final answer
    x = 9,175.90

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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.