Home / 8,722.73-12,039.28-5,738.85

Finding the Fourth Proportional to 8,722.73, 12,039.28 and 5,738.85

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Solution

The fourth proportional to 8,722.73, 12,039.28 and 5,738.85 is: 7,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.73 : 12,039.28 = 5,738.85 : x
  2. Step 2: Convert to fraction form
    8,722.73/12,039.28 = 5,738.85/x
  3. Step 3: Cross multiply
    8,722.73x = 12,039.28 × 5,738.85
  4. Step 4: Simplify right side
    8,722.73x = 69,091,607.68
  5. Step 5: Solve for x
    x = 69,091,607.68/8,722.73
  6. Step 6: Final answer
    x = 7,920.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.