Home / 13,826.13-20,742.80-3,966.18

Finding the Fourth Proportional to 13,826.13, 20,742.80 and 3,966.18

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Solution

The fourth proportional to 13,826.13, 20,742.80 and 3,966.18 is: 5,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.13 : 20,742.80 = 3,966.18 : x
  2. Step 2: Convert to fraction form
    13,826.13/20,742.80 = 3,966.18/x
  3. Step 3: Cross multiply
    13,826.13x = 20,742.80 × 3,966.18
  4. Step 4: Simplify right side
    13,826.13x = 82,269,658.67
  5. Step 5: Solve for x
    x = 82,269,658.67/13,826.13
  6. Step 6: Final answer
    x = 5,950.30

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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.