Home / 10,890.62-16,343.19-3,965.12

Finding the Fourth Proportional to 10,890.62, 16,343.19 and 3,965.12

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Solution

The fourth proportional to 10,890.62, 16,343.19 and 3,965.12 is: 5,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.62 : 16,343.19 = 3,965.12 : x
  2. Step 2: Convert to fraction form
    10,890.62/16,343.19 = 3,965.12/x
  3. Step 3: Cross multiply
    10,890.62x = 16,343.19 × 3,965.12
  4. Step 4: Simplify right side
    10,890.62x = 64,802,627.82
  5. Step 5: Solve for x
    x = 64,802,627.82/10,890.62
  6. Step 6: Final answer
    x = 5,950.32

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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.