Home / 8,781.64-13,172.46-3,850.16

Finding the Fourth Proportional to 8,781.64, 13,172.46 and 3,850.16

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Solution

The fourth proportional to 8,781.64, 13,172.46 and 3,850.16 is: 5,775.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.64 : 13,172.46 = 3,850.16 : x
  2. Step 2: Convert to fraction form
    8,781.64/13,172.46 = 3,850.16/x
  3. Step 3: Cross multiply
    8,781.64x = 13,172.46 × 3,850.16
  4. Step 4: Simplify right side
    8,781.64x = 50,716,078.59
  5. Step 5: Solve for x
    x = 50,716,078.59/8,781.64
  6. Step 6: Final answer
    x = 5,775.24

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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.