Home / 11,006.80-16,488.60-6,611.28

Finding the Fourth Proportional to 11,006.80, 16,488.60 and 6,611.28

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Solution

The fourth proportional to 11,006.80, 16,488.60 and 6,611.28 is: 9,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.80 : 16,488.60 = 6,611.28 : x
  2. Step 2: Convert to fraction form
    11,006.80/16,488.60 = 6,611.28/x
  3. Step 3: Cross multiply
    11,006.80x = 16,488.60 × 6,611.28
  4. Step 4: Simplify right side
    11,006.80x = 109,010,751.41
  5. Step 5: Solve for x
    x = 109,010,751.41/11,006.80
  6. Step 6: Final answer
    x = 9,903.95

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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.