Home / 11,399.91-15,731.46-6,364.02

Finding the Fourth Proportional to 11,399.91, 15,731.46 and 6,364.02

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Solution

The fourth proportional to 11,399.91, 15,731.46 and 6,364.02 is: 8,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.91 : 15,731.46 = 6,364.02 : x
  2. Step 2: Convert to fraction form
    11,399.91/15,731.46 = 6,364.02/x
  3. Step 3: Cross multiply
    11,399.91x = 15,731.46 × 6,364.02
  4. Step 4: Simplify right side
    11,399.91x = 100,115,326.07
  5. Step 5: Solve for x
    x = 100,115,326.07/11,399.91
  6. Step 6: Final answer
    x = 8,782.12

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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.