Home / 11,920.20-17,882.24-4,898.32

Finding the Fourth Proportional to 11,920.20, 17,882.24 and 4,898.32

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Solution

The fourth proportional to 11,920.20, 17,882.24 and 4,898.32 is: 7,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.20 : 17,882.24 = 4,898.32 : x
  2. Step 2: Convert to fraction form
    11,920.20/17,882.24 = 4,898.32/x
  3. Step 3: Cross multiply
    11,920.20x = 17,882.24 × 4,898.32
  4. Step 4: Simplify right side
    11,920.20x = 87,592,933.84
  5. Step 5: Solve for x
    x = 87,592,933.84/11,920.20
  6. Step 6: Final answer
    x = 7,348.28

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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.