Home / 12,965.76-19,447.68-5,169.60

Finding the Fourth Proportional to 12,965.76, 19,447.68 and 5,169.60

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Solution

The fourth proportional to 12,965.76, 19,447.68 and 5,169.60 is: 7,754.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.76 : 19,447.68 = 5,169.60 : x
  2. Step 2: Convert to fraction form
    12,965.76/19,447.68 = 5,169.60/x
  3. Step 3: Cross multiply
    12,965.76x = 19,447.68 × 5,169.60
  4. Step 4: Simplify right side
    12,965.76x = 100,536,726.53
  5. Step 5: Solve for x
    x = 100,536,726.53/12,965.76
  6. Step 6: Final answer
    x = 7,754.02

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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.