Home / 11,367.36-15,685.84-6,650.72

Finding the Fourth Proportional to 11,367.36, 15,685.84 and 6,650.72

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Solution

The fourth proportional to 11,367.36, 15,685.84 and 6,650.72 is: 9,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.36 : 15,685.84 = 6,650.72 : x
  2. Step 2: Convert to fraction form
    11,367.36/15,685.84 = 6,650.72/x
  3. Step 3: Cross multiply
    11,367.36x = 15,685.84 × 6,650.72
  4. Step 4: Simplify right side
    11,367.36x = 104,322,129.80
  5. Step 5: Solve for x
    x = 104,322,129.80/11,367.36
  6. Step 6: Final answer
    x = 9,177.34

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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.