Home / 11,323.72-16,986.36-4,743.28

Finding the Fourth Proportional to 11,323.72, 16,986.36 and 4,743.28

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Solution

The fourth proportional to 11,323.72, 16,986.36 and 4,743.28 is: 7,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.72 : 16,986.36 = 4,743.28 : x
  2. Step 2: Convert to fraction form
    11,323.72/16,986.36 = 4,743.28/x
  3. Step 3: Cross multiply
    11,323.72x = 16,986.36 × 4,743.28
  4. Step 4: Simplify right side
    11,323.72x = 80,571,061.66
  5. Step 5: Solve for x
    x = 80,571,061.66/11,323.72
  6. Step 6: Final answer
    x = 7,115.25

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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.