Home / 8,929.20-13,394.88-3,381.24

Finding the Fourth Proportional to 8,929.20, 13,394.88 and 3,381.24

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Solution

The fourth proportional to 8,929.20, 13,394.88 and 3,381.24 is: 5,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.20 : 13,394.88 = 3,381.24 : x
  2. Step 2: Convert to fraction form
    8,929.20/13,394.88 = 3,381.24/x
  3. Step 3: Cross multiply
    8,929.20x = 13,394.88 × 3,381.24
  4. Step 4: Simplify right side
    8,929.20x = 45,291,304.05
  5. Step 5: Solve for x
    x = 45,291,304.05/8,929.20
  6. Step 6: Final answer
    x = 5,072.27

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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.