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Finding the Fourth Proportional to 14,815.03, 20,445.11 and 8,100.94

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Solution

The fourth proportional to 14,815.03, 20,445.11 and 8,100.94 is: 11,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.03 : 20,445.11 = 8,100.94 : x
  2. Step 2: Convert to fraction form
    14,815.03/20,445.11 = 8,100.94/x
  3. Step 3: Cross multiply
    14,815.03x = 20,445.11 × 8,100.94
  4. Step 4: Simplify right side
    14,815.03x = 165,624,568.90
  5. Step 5: Solve for x
    x = 165,624,568.90/14,815.03
  6. Step 6: Final answer
    x = 11,179.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.