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Finding the Fourth Proportional to 11,078.99, 16,621.62 and 4,509.89

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Solution

The fourth proportional to 11,078.99, 16,621.62 and 4,509.89 is: 6,766.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.99 : 16,621.62 = 4,509.89 : x
  2. Step 2: Convert to fraction form
    11,078.99/16,621.62 = 4,509.89/x
  3. Step 3: Cross multiply
    11,078.99x = 16,621.62 × 4,509.89
  4. Step 4: Simplify right side
    11,078.99x = 74,961,677.82
  5. Step 5: Solve for x
    x = 74,961,677.82/11,078.99
  6. Step 6: Final answer
    x = 6,766.11

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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.