Home / 11,135.76-16,680.96-5,274.60

Finding the Fourth Proportional to 11,135.76, 16,680.96 and 5,274.60

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Solution

The fourth proportional to 11,135.76, 16,680.96 and 5,274.60 is: 7,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.76 : 16,680.96 = 5,274.60 : x
  2. Step 2: Convert to fraction form
    11,135.76/16,680.96 = 5,274.60/x
  3. Step 3: Cross multiply
    11,135.76x = 16,680.96 × 5,274.60
  4. Step 4: Simplify right side
    11,135.76x = 87,985,391.62
  5. Step 5: Solve for x
    x = 87,985,391.62/11,135.76
  6. Step 6: Final answer
    x = 7,901.16

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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.