Home / 10,855.89-16,291.13-5,012.55

Finding the Fourth Proportional to 10,855.89, 16,291.13 and 5,012.55

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Solution

The fourth proportional to 10,855.89, 16,291.13 and 5,012.55 is: 7,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.89 : 16,291.13 = 5,012.55 : x
  2. Step 2: Convert to fraction form
    10,855.89/16,291.13 = 5,012.55/x
  3. Step 3: Cross multiply
    10,855.89x = 16,291.13 × 5,012.55
  4. Step 4: Simplify right side
    10,855.89x = 81,660,078.62
  5. Step 5: Solve for x
    x = 81,660,078.62/10,855.89
  6. Step 6: Final answer
    x = 7,522.19

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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.