Home / 11,520.36-15,899.62-8,544.68

Finding the Fourth Proportional to 11,520.36, 15,899.62 and 8,544.68

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Solution

The fourth proportional to 11,520.36, 15,899.62 and 8,544.68 is: 11,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.36 : 15,899.62 = 8,544.68 : x
  2. Step 2: Convert to fraction form
    11,520.36/15,899.62 = 8,544.68/x
  3. Step 3: Cross multiply
    11,520.36x = 15,899.62 × 8,544.68
  4. Step 4: Simplify right side
    11,520.36x = 135,857,165.02
  5. Step 5: Solve for x
    x = 135,857,165.02/11,520.36
  6. Step 6: Final answer
    x = 11,792.79

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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.