Home / 8,874.78-13,311.09-5,577.54

Finding the Fourth Proportional to 8,874.78, 13,311.09 and 5,577.54

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Solution

The fourth proportional to 8,874.78, 13,311.09 and 5,577.54 is: 8,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.78 : 13,311.09 = 5,577.54 : x
  2. Step 2: Convert to fraction form
    8,874.78/13,311.09 = 5,577.54/x
  3. Step 3: Cross multiply
    8,874.78x = 13,311.09 × 5,577.54
  4. Step 4: Simplify right side
    8,874.78x = 74,243,136.92
  5. Step 5: Solve for x
    x = 74,243,136.92/8,874.78
  6. Step 6: Final answer
    x = 8,365.63

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1.5x scale

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.