Home / 8,919.52-13,379.28-3,722.56

Finding the Fourth Proportional to 8,919.52, 13,379.28 and 3,722.56

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Solution

The fourth proportional to 8,919.52, 13,379.28 and 3,722.56 is: 5,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.52 : 13,379.28 = 3,722.56 : x
  2. Step 2: Convert to fraction form
    8,919.52/13,379.28 = 3,722.56/x
  3. Step 3: Cross multiply
    8,919.52x = 13,379.28 × 3,722.56
  4. Step 4: Simplify right side
    8,919.52x = 49,805,172.56
  5. Step 5: Solve for x
    x = 49,805,172.56/8,919.52
  6. Step 6: Final answer
    x = 5,583.84

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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.