Home / 10,990.61-16,488.63-3,199.44

Finding the Fourth Proportional to 10,990.61, 16,488.63 and 3,199.44

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Solution

The fourth proportional to 10,990.61, 16,488.63 and 3,199.44 is: 4,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.61 : 16,488.63 = 3,199.44 : x
  2. Step 2: Convert to fraction form
    10,990.61/16,488.63 = 3,199.44/x
  3. Step 3: Cross multiply
    10,990.61x = 16,488.63 × 3,199.44
  4. Step 4: Simplify right side
    10,990.61x = 52,754,382.37
  5. Step 5: Solve for x
    x = 52,754,382.37/10,990.61
  6. Step 6: Final answer
    x = 4,799.95

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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.