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Finding the Fourth Proportional to 11,147.79, 16,699.01 and 8,944.59

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Solution

The fourth proportional to 11,147.79, 16,699.01 and 8,944.59 is: 13,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.79 : 16,699.01 = 8,944.59 : x
  2. Step 2: Convert to fraction form
    11,147.79/16,699.01 = 8,944.59/x
  3. Step 3: Cross multiply
    11,147.79x = 16,699.01 × 8,944.59
  4. Step 4: Simplify right side
    11,147.79x = 149,365,753.13
  5. Step 5: Solve for x
    x = 149,365,753.13/11,147.79
  6. Step 6: Final answer
    x = 13,398.69

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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.