Home / 11,147.78-16,724.37-5,587.31

Finding the Fourth Proportional to 11,147.78, 16,724.37 and 5,587.31

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Solution

The fourth proportional to 11,147.78, 16,724.37 and 5,587.31 is: 8,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.78 : 16,724.37 = 5,587.31 : x
  2. Step 2: Convert to fraction form
    11,147.78/16,724.37 = 5,587.31/x
  3. Step 3: Cross multiply
    11,147.78x = 16,724.37 × 5,587.31
  4. Step 4: Simplify right side
    11,147.78x = 93,444,239.74
  5. Step 5: Solve for x
    x = 93,444,239.74/11,147.78
  6. Step 6: Final answer
    x = 8,382.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.