Home / 13,170.42-19,764.52-4,857.09

Finding the Fourth Proportional to 13,170.42, 19,764.52 and 4,857.09

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Solution

The fourth proportional to 13,170.42, 19,764.52 and 4,857.09 is: 7,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.42 : 19,764.52 = 4,857.09 : x
  2. Step 2: Convert to fraction form
    13,170.42/19,764.52 = 4,857.09/x
  3. Step 3: Cross multiply
    13,170.42x = 19,764.52 × 4,857.09
  4. Step 4: Simplify right side
    13,170.42x = 95,998,028.61
  5. Step 5: Solve for x
    x = 95,998,028.61/13,170.42
  6. Step 6: Final answer
    x = 7,288.91

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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.