Home / 10,715.21-16,072.14-3,319.06

Finding the Fourth Proportional to 10,715.21, 16,072.14 and 3,319.06

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Solution

The fourth proportional to 10,715.21, 16,072.14 and 3,319.06 is: 4,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.21 : 16,072.14 = 3,319.06 : x
  2. Step 2: Convert to fraction form
    10,715.21/16,072.14 = 3,319.06/x
  3. Step 3: Cross multiply
    10,715.21x = 16,072.14 × 3,319.06
  4. Step 4: Simplify right side
    10,715.21x = 53,344,396.99
  5. Step 5: Solve for x
    x = 53,344,396.99/10,715.21
  6. Step 6: Final answer
    x = 4,978.38

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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.