Home / 8,156.62-12,246.36-5,401

Finding the Fourth Proportional to 8,156.62, 12,246.36 and 5,401

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Solution

The fourth proportional to 8,156.62, 12,246.36 and 5,401 is: 8,109.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.62 : 12,246.36 = 5,401 : x
  2. Step 2: Convert to fraction form
    8,156.62/12,246.36 = 5,401/x
  3. Step 3: Cross multiply
    8,156.62x = 12,246.36 × 5,401
  4. Step 4: Simplify right side
    8,156.62x = 66,142,590.36
  5. Step 5: Solve for x
    x = 66,142,590.36/8,156.62
  6. Step 6: Final answer
    x = 8,109.07

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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.