Home / 11,932.40-17,893.20-5,355.20

Finding the Fourth Proportional to 11,932.40, 17,893.20 and 5,355.20

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Solution

The fourth proportional to 11,932.40, 17,893.20 and 5,355.20 is: 8,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,932.40 : 17,893.20 = 5,355.20 : x
  2. Step 2: Convert to fraction form
    11,932.40/17,893.20 = 5,355.20/x
  3. Step 3: Cross multiply
    11,932.40x = 17,893.20 × 5,355.20
  4. Step 4: Simplify right side
    11,932.40x = 95,821,664.64
  5. Step 5: Solve for x
    x = 95,821,664.64/11,932.40
  6. Step 6: Final answer
    x = 8,030.38

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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.