Home / 8,322.88-11,491.36-5,180.48

Finding the Fourth Proportional to 8,322.88, 11,491.36 and 5,180.48

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Solution

The fourth proportional to 8,322.88, 11,491.36 and 5,180.48 is: 7,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.88 : 11,491.36 = 5,180.48 : x
  2. Step 2: Convert to fraction form
    8,322.88/11,491.36 = 5,180.48/x
  3. Step 3: Cross multiply
    8,322.88x = 11,491.36 × 5,180.48
  4. Step 4: Simplify right side
    8,322.88x = 59,530,760.65
  5. Step 5: Solve for x
    x = 59,530,760.65/8,322.88
  6. Step 6: Final answer
    x = 7,152.66

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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.