Home / 10,110.06-15,158.21-5,175.68

Finding the Fourth Proportional to 10,110.06, 15,158.21 and 5,175.68

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Solution

The fourth proportional to 10,110.06, 15,158.21 and 5,175.68 is: 7,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.06 : 15,158.21 = 5,175.68 : x
  2. Step 2: Convert to fraction form
    10,110.06/15,158.21 = 5,175.68/x
  3. Step 3: Cross multiply
    10,110.06x = 15,158.21 × 5,175.68
  4. Step 4: Simplify right side
    10,110.06x = 78,453,942.66
  5. Step 5: Solve for x
    x = 78,453,942.66/10,110.06
  6. Step 6: Final answer
    x = 7,759.99

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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.