Home / 12,191.31-18,277.55-5,609.66

Finding the Fourth Proportional to 12,191.31, 18,277.55 and 5,609.66

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Solution

The fourth proportional to 12,191.31, 18,277.55 and 5,609.66 is: 8,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.31 : 18,277.55 = 5,609.66 : x
  2. Step 2: Convert to fraction form
    12,191.31/18,277.55 = 5,609.66/x
  3. Step 3: Cross multiply
    12,191.31x = 18,277.55 × 5,609.66
  4. Step 4: Simplify right side
    12,191.31x = 102,530,742.73
  5. Step 5: Solve for x
    x = 102,530,742.73/12,191.31
  6. Step 6: Final answer
    x = 8,410.15

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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.