Home / 8,759.27-12,081.79-5,219.75

Finding the Fourth Proportional to 8,759.27, 12,081.79 and 5,219.75

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Solution

The fourth proportional to 8,759.27, 12,081.79 and 5,219.75 is: 7,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.27 : 12,081.79 = 5,219.75 : x
  2. Step 2: Convert to fraction form
    8,759.27/12,081.79 = 5,219.75/x
  3. Step 3: Cross multiply
    8,759.27x = 12,081.79 × 5,219.75
  4. Step 4: Simplify right side
    8,759.27x = 63,063,923.35
  5. Step 5: Solve for x
    x = 63,063,923.35/8,759.27
  6. Step 6: Final answer
    x = 7,199.68

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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.