Home / 8,147.19-11,244.32-5,163.30

Finding the Fourth Proportional to 8,147.19, 11,244.32 and 5,163.30

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Solution

The fourth proportional to 8,147.19, 11,244.32 and 5,163.30 is: 7,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.19 : 11,244.32 = 5,163.30 : x
  2. Step 2: Convert to fraction form
    8,147.19/11,244.32 = 5,163.30/x
  3. Step 3: Cross multiply
    8,147.19x = 11,244.32 × 5,163.30
  4. Step 4: Simplify right side
    8,147.19x = 58,057,771.64
  5. Step 5: Solve for x
    x = 58,057,771.64/8,147.19
  6. Step 6: Final answer
    x = 7,126.11

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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.