Home / 8,736.15-13,078.44-5,769.12

Finding the Fourth Proportional to 8,736.15, 13,078.44 and 5,769.12

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Solution

The fourth proportional to 8,736.15, 13,078.44 and 5,769.12 is: 8,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.15 : 13,078.44 = 5,769.12 : x
  2. Step 2: Convert to fraction form
    8,736.15/13,078.44 = 5,769.12/x
  3. Step 3: Cross multiply
    8,736.15x = 13,078.44 × 5,769.12
  4. Step 4: Simplify right side
    8,736.15x = 75,451,089.77
  5. Step 5: Solve for x
    x = 75,451,089.77/8,736.15
  6. Step 6: Final answer
    x = 8,636.65

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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.