Home / 11,405.42-15,739.33-6,369.73

Finding the Fourth Proportional to 11,405.42, 15,739.33 and 6,369.73

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Solution

The fourth proportional to 11,405.42, 15,739.33 and 6,369.73 is: 8,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.42 : 15,739.33 = 6,369.73 : x
  2. Step 2: Convert to fraction form
    11,405.42/15,739.33 = 6,369.73/x
  3. Step 3: Cross multiply
    11,405.42x = 15,739.33 × 6,369.73
  4. Step 4: Simplify right side
    11,405.42x = 100,255,250.63
  5. Step 5: Solve for x
    x = 100,255,250.63/11,405.42
  6. Step 6: Final answer
    x = 8,790.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.