Home / 7,857.41-11,787.53-3,474.90

Finding the Fourth Proportional to 7,857.41, 11,787.53 and 3,474.90

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Solution

The fourth proportional to 7,857.41, 11,787.53 and 3,474.90 is: 5,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.41 : 11,787.53 = 3,474.90 : x
  2. Step 2: Convert to fraction form
    7,857.41/11,787.53 = 3,474.90/x
  3. Step 3: Cross multiply
    7,857.41x = 11,787.53 × 3,474.90
  4. Step 4: Simplify right side
    7,857.41x = 40,960,470.62
  5. Step 5: Solve for x
    x = 40,960,470.62/7,857.41
  6. Step 6: Final answer
    x = 5,212.98

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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.