Home / 13,310.98-19,965.78-3,951.08

Finding the Fourth Proportional to 13,310.98, 19,965.78 and 3,951.08

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Solution

The fourth proportional to 13,310.98, 19,965.78 and 3,951.08 is: 5,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.98 : 19,965.78 = 3,951.08 : x
  2. Step 2: Convert to fraction form
    13,310.98/19,965.78 = 3,951.08/x
  3. Step 3: Cross multiply
    13,310.98x = 19,965.78 × 3,951.08
  4. Step 4: Simplify right side
    13,310.98x = 78,886,294.21
  5. Step 5: Solve for x
    x = 78,886,294.21/13,310.98
  6. Step 6: Final answer
    x = 5,926.41

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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.