Home / 10,721.30-16,081.94-2,930.72

Finding the Fourth Proportional to 10,721.30, 16,081.94 and 2,930.72

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Solution

The fourth proportional to 10,721.30, 16,081.94 and 2,930.72 is: 4,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.30 : 16,081.94 = 2,930.72 : x
  2. Step 2: Convert to fraction form
    10,721.30/16,081.94 = 2,930.72/x
  3. Step 3: Cross multiply
    10,721.30x = 16,081.94 × 2,930.72
  4. Step 4: Simplify right side
    10,721.30x = 47,131,590.11
  5. Step 5: Solve for x
    x = 47,131,590.11/10,721.30
  6. Step 6: Final answer
    x = 4,396.07

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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.