Home / 11,457.54-17,175.30-7,284.60

Finding the Fourth Proportional to 11,457.54, 17,175.30 and 7,284.60

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Solution

The fourth proportional to 11,457.54, 17,175.30 and 7,284.60 is: 10,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.54 : 17,175.30 = 7,284.60 : x
  2. Step 2: Convert to fraction form
    11,457.54/17,175.30 = 7,284.60/x
  3. Step 3: Cross multiply
    11,457.54x = 17,175.30 × 7,284.60
  4. Step 4: Simplify right side
    11,457.54x = 125,115,190.38
  5. Step 5: Solve for x
    x = 125,115,190.38/11,457.54
  6. Step 6: Final answer
    x = 10,919.90

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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.