Home / 10,178.20-15,261.90-3,604.60

Finding the Fourth Proportional to 10,178.20, 15,261.90 and 3,604.60

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Solution

The fourth proportional to 10,178.20, 15,261.90 and 3,604.60 is: 5,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.20 : 15,261.90 = 3,604.60 : x
  2. Step 2: Convert to fraction form
    10,178.20/15,261.90 = 3,604.60/x
  3. Step 3: Cross multiply
    10,178.20x = 15,261.90 × 3,604.60
  4. Step 4: Simplify right side
    10,178.20x = 55,013,044.74
  5. Step 5: Solve for x
    x = 55,013,044.74/10,178.20
  6. Step 6: Final answer
    x = 5,404.99

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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.