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Finding the Fourth Proportional to 11,758.99, 17,628.11 and 8,997.99

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Solution

The fourth proportional to 11,758.99, 17,628.11 and 8,997.99 is: 13,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.99 : 17,628.11 = 8,997.99 : x
  2. Step 2: Convert to fraction form
    11,758.99/17,628.11 = 8,997.99/x
  3. Step 3: Cross multiply
    11,758.99x = 17,628.11 × 8,997.99
  4. Step 4: Simplify right side
    11,758.99x = 158,617,557.50
  5. Step 5: Solve for x
    x = 158,617,557.50/11,758.99
  6. Step 6: Final answer
    x = 13,489.05

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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.