Home / 8,191.23-11,299.77-5,359.47

Finding the Fourth Proportional to 8,191.23, 11,299.77 and 5,359.47

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Solution

The fourth proportional to 8,191.23, 11,299.77 and 5,359.47 is: 7,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.23 : 11,299.77 = 5,359.47 : x
  2. Step 2: Convert to fraction form
    8,191.23/11,299.77 = 5,359.47/x
  3. Step 3: Cross multiply
    8,191.23x = 11,299.77 × 5,359.47
  4. Step 4: Simplify right side
    8,191.23x = 60,560,778.32
  5. Step 5: Solve for x
    x = 60,560,778.32/8,191.23
  6. Step 6: Final answer
    x = 7,393.37

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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.