Home / 11,455.16-17,180.00-8,371.49

Finding the Fourth Proportional to 11,455.16, 17,180.00 and 8,371.49

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Solution

The fourth proportional to 11,455.16, 17,180.00 and 8,371.49 is: 12,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.16 : 17,180.00 = 8,371.49 : x
  2. Step 2: Convert to fraction form
    11,455.16/17,180.00 = 8,371.49/x
  3. Step 3: Cross multiply
    11,455.16x = 17,180.00 × 8,371.49
  4. Step 4: Simplify right side
    11,455.16x = 143,822,101.84
  5. Step 5: Solve for x
    x = 143,822,101.84/11,455.16
  6. Step 6: Final answer
    x = 12,555.23

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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.