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Finding the Fourth Proportional to 11,012.10, 16,518 and 5,164.58

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Solution

The fourth proportional to 11,012.10, 16,518 and 5,164.58 is: 7,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.10 : 16,518 = 5,164.58 : x
  2. Step 2: Convert to fraction form
    11,012.10/16,518 = 5,164.58/x
  3. Step 3: Cross multiply
    11,012.10x = 16,518 × 5,164.58
  4. Step 4: Simplify right side
    11,012.10x = 85,308,532.44
  5. Step 5: Solve for x
    x = 85,308,532.44/11,012.10
  6. Step 6: Final answer
    x = 7,746.80

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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.