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Finding the Fourth Proportional to 11,297.08, 16,914.32 and 8,515.32

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Solution

The fourth proportional to 11,297.08, 16,914.32 and 8,515.32 is: 12,749.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,297.08 : 16,914.32 = 8,515.32 : x
  2. Step 2: Convert to fraction form
    11,297.08/16,914.32 = 8,515.32/x
  3. Step 3: Cross multiply
    11,297.08x = 16,914.32 × 8,515.32
  4. Step 4: Simplify right side
    11,297.08x = 144,030,847.38
  5. Step 5: Solve for x
    x = 144,030,847.38/11,297.08
  6. Step 6: Final answer
    x = 12,749.39

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1.5x scale

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.