Home / 11,257.76-16,880.56-7,977.26

Finding the Fourth Proportional to 11,257.76, 16,880.56 and 7,977.26

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Solution

The fourth proportional to 11,257.76, 16,880.56 and 7,977.26 is: 11,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.76 : 16,880.56 = 7,977.26 : x
  2. Step 2: Convert to fraction form
    11,257.76/16,880.56 = 7,977.26/x
  3. Step 3: Cross multiply
    11,257.76x = 16,880.56 × 7,977.26
  4. Step 4: Simplify right side
    11,257.76x = 134,660,616.07
  5. Step 5: Solve for x
    x = 134,660,616.07/11,257.76
  6. Step 6: Final answer
    x = 11,961.58

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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.