Home / 11,328.21-16,990.99-3,008.87

Finding the Fourth Proportional to 11,328.21, 16,990.99 and 3,008.87

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Solution

The fourth proportional to 11,328.21, 16,990.99 and 3,008.87 is: 4,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.21 : 16,990.99 = 3,008.87 : x
  2. Step 2: Convert to fraction form
    11,328.21/16,990.99 = 3,008.87/x
  3. Step 3: Cross multiply
    11,328.21x = 16,990.99 × 3,008.87
  4. Step 4: Simplify right side
    11,328.21x = 51,123,680.08
  5. Step 5: Solve for x
    x = 51,123,680.08/11,328.21
  6. Step 6: Final answer
    x = 4,512.95

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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.