Home / 13,791.11-20,686.23-8,207.06

Finding the Fourth Proportional to 13,791.11, 20,686.23 and 8,207.06

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Solution

The fourth proportional to 13,791.11, 20,686.23 and 8,207.06 is: 12,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.11 : 20,686.23 = 8,207.06 : x
  2. Step 2: Convert to fraction form
    13,791.11/20,686.23 = 8,207.06/x
  3. Step 3: Cross multiply
    13,791.11x = 20,686.23 × 8,207.06
  4. Step 4: Simplify right side
    13,791.11x = 169,773,027.35
  5. Step 5: Solve for x
    x = 169,773,027.35/13,791.11
  6. Step 6: Final answer
    x = 12,310.33

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1.5x scale

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.