Home / 8,190.97-11,300.26-5,165.10

Finding the Fourth Proportional to 8,190.97, 11,300.26 and 5,165.10

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Solution

The fourth proportional to 8,190.97, 11,300.26 and 5,165.10 is: 7,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.97 : 11,300.26 = 5,165.10 : x
  2. Step 2: Convert to fraction form
    8,190.97/11,300.26 = 5,165.10/x
  3. Step 3: Cross multiply
    8,190.97x = 11,300.26 × 5,165.10
  4. Step 4: Simplify right side
    8,190.97x = 58,366,890.60
  5. Step 5: Solve for x
    x = 58,366,890.60/8,190.97
  6. Step 6: Final answer
    x = 7,125.76

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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.