Home / 11,147.22-15,382.47-6,367.71

Finding the Fourth Proportional to 11,147.22, 15,382.47 and 6,367.71

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Solution

The fourth proportional to 11,147.22, 15,382.47 and 6,367.71 is: 8,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.22 : 15,382.47 = 6,367.71 : x
  2. Step 2: Convert to fraction form
    11,147.22/15,382.47 = 6,367.71/x
  3. Step 3: Cross multiply
    11,147.22x = 15,382.47 × 6,367.71
  4. Step 4: Simplify right side
    11,147.22x = 97,951,108.04
  5. Step 5: Solve for x
    x = 97,951,108.04/11,147.22
  6. Step 6: Final answer
    x = 8,787.04

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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.