Home / 10,930.86-15,080.31-6,731.82

Finding the Fourth Proportional to 10,930.86, 15,080.31 and 6,731.82

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Solution

The fourth proportional to 10,930.86, 15,080.31 and 6,731.82 is: 9,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.86 : 15,080.31 = 6,731.82 : x
  2. Step 2: Convert to fraction form
    10,930.86/15,080.31 = 6,731.82/x
  3. Step 3: Cross multiply
    10,930.86x = 15,080.31 × 6,731.82
  4. Step 4: Simplify right side
    10,930.86x = 101,517,932.46
  5. Step 5: Solve for x
    x = 101,517,932.46/10,930.86
  6. Step 6: Final answer
    x = 9,287.28

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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.