Home / 11,441.42-15,787.33-6,405.85

Finding the Fourth Proportional to 11,441.42, 15,787.33 and 6,405.85

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Solution

The fourth proportional to 11,441.42, 15,787.33 and 6,405.85 is: 8,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,441.42 : 15,787.33 = 6,405.85 : x
  2. Step 2: Convert to fraction form
    11,441.42/15,787.33 = 6,405.85/x
  3. Step 3: Cross multiply
    11,441.42x = 15,787.33 × 6,405.85
  4. Step 4: Simplify right side
    11,441.42x = 101,131,235.85
  5. Step 5: Solve for x
    x = 101,131,235.85/11,441.42
  6. Step 6: Final answer
    x = 8,839.05

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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.