Home / 13,718.97-20,575.98-3,855.84

Finding the Fourth Proportional to 13,718.97, 20,575.98 and 3,855.84

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Solution

The fourth proportional to 13,718.97, 20,575.98 and 3,855.84 is: 5,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.97 : 20,575.98 = 3,855.84 : x
  2. Step 2: Convert to fraction form
    13,718.97/20,575.98 = 3,855.84/x
  3. Step 3: Cross multiply
    13,718.97x = 20,575.98 × 3,855.84
  4. Step 4: Simplify right side
    13,718.97x = 79,337,686.72
  5. Step 5: Solve for x
    x = 79,337,686.72/13,718.97
  6. Step 6: Final answer
    x = 5,783.06

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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.