Home / 13,712.88-20,566.11-3,853.10

Finding the Fourth Proportional to 13,712.88, 20,566.11 and 3,853.10

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Solution

The fourth proportional to 13,712.88, 20,566.11 and 3,853.10 is: 5,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.88 : 20,566.11 = 3,853.10 : x
  2. Step 2: Convert to fraction form
    13,712.88/20,566.11 = 3,853.10/x
  3. Step 3: Cross multiply
    13,712.88x = 20,566.11 × 3,853.10
  4. Step 4: Simplify right side
    13,712.88x = 79,243,278.44
  5. Step 5: Solve for x
    x = 79,243,278.44/13,712.88
  6. Step 6: Final answer
    x = 5,778.75

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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.