Home / 11,420.10-17,135.60-4,028.04

Finding the Fourth Proportional to 11,420.10, 17,135.60 and 4,028.04

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Solution

The fourth proportional to 11,420.10, 17,135.60 and 4,028.04 is: 6,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.10 : 17,135.60 = 4,028.04 : x
  2. Step 2: Convert to fraction form
    11,420.10/17,135.60 = 4,028.04/x
  3. Step 3: Cross multiply
    11,420.10x = 17,135.60 × 4,028.04
  4. Step 4: Simplify right side
    11,420.10x = 69,022,862.08
  5. Step 5: Solve for x
    x = 69,022,862.08/11,420.10
  6. Step 6: Final answer
    x = 6,043.98

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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.