Home / 11,175.28-16,762.88-2,855.30

Finding the Fourth Proportional to 11,175.28, 16,762.88 and 2,855.30

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Solution

The fourth proportional to 11,175.28, 16,762.88 and 2,855.30 is: 4,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.28 : 16,762.88 = 2,855.30 : x
  2. Step 2: Convert to fraction form
    11,175.28/16,762.88 = 2,855.30/x
  3. Step 3: Cross multiply
    11,175.28x = 16,762.88 × 2,855.30
  4. Step 4: Simplify right side
    11,175.28x = 47,862,974.59
  5. Step 5: Solve for x
    x = 47,862,974.59/11,175.28
  6. Step 6: Final answer
    x = 4,282.93

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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.