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Finding the Fourth Proportional to 18,862.00, 28,249.83 and 9,008.21

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Solution

The fourth proportional to 18,862.00, 28,249.83 and 9,008.21 is: 13,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.00 : 28,249.83 = 9,008.21 : x
  2. Step 2: Convert to fraction form
    18,862.00/28,249.83 = 9,008.21/x
  3. Step 3: Cross multiply
    18,862.00x = 28,249.83 × 9,008.21
  4. Step 4: Simplify right side
    18,862.00x = 254,480,471.73
  5. Step 5: Solve for x
    x = 254,480,471.73/18,862.00
  6. Step 6: Final answer
    x = 13,491.70

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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.