Home / 11,121.32-15,343.32-6,404.66

Finding the Fourth Proportional to 11,121.32, 15,343.32 and 6,404.66

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Solution

The fourth proportional to 11,121.32, 15,343.32 and 6,404.66 is: 8,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.32 : 15,343.32 = 6,404.66 : x
  2. Step 2: Convert to fraction form
    11,121.32/15,343.32 = 6,404.66/x
  3. Step 3: Cross multiply
    11,121.32x = 15,343.32 × 6,404.66
  4. Step 4: Simplify right side
    11,121.32x = 98,268,747.87
  5. Step 5: Solve for x
    x = 98,268,747.87/11,121.32
  6. Step 6: Final answer
    x = 8,836.07

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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.