Home / 11,128.59-15,356.79-6,091.88

Finding the Fourth Proportional to 11,128.59, 15,356.79 and 6,091.88

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Solution

The fourth proportional to 11,128.59, 15,356.79 and 6,091.88 is: 8,406.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.59 : 15,356.79 = 6,091.88 : x
  2. Step 2: Convert to fraction form
    11,128.59/15,356.79 = 6,091.88/x
  3. Step 3: Cross multiply
    11,128.59x = 15,356.79 × 6,091.88
  4. Step 4: Simplify right side
    11,128.59x = 93,551,645.08
  5. Step 5: Solve for x
    x = 93,551,645.08/11,128.59
  6. Step 6: Final answer
    x = 8,406.42

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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.