Home / 11,216.27-15,478.64-6,180.79

Finding the Fourth Proportional to 11,216.27, 15,478.64 and 6,180.79

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Solution

The fourth proportional to 11,216.27, 15,478.64 and 6,180.79 is: 8,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.27 : 15,478.64 = 6,180.79 : x
  2. Step 2: Convert to fraction form
    11,216.27/15,478.64 = 6,180.79/x
  3. Step 3: Cross multiply
    11,216.27x = 15,478.64 × 6,180.79
  4. Step 4: Simplify right side
    11,216.27x = 95,670,223.33
  5. Step 5: Solve for x
    x = 95,670,223.33/11,216.27
  6. Step 6: Final answer
    x = 8,529.59

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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.