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Finding the Fourth Proportional to 8,474.41, 12,711.05 and 2,927.83

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Solution

The fourth proportional to 8,474.41, 12,711.05 and 2,927.83 is: 4,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.41 : 12,711.05 = 2,927.83 : x
  2. Step 2: Convert to fraction form
    8,474.41/12,711.05 = 2,927.83/x
  3. Step 3: Cross multiply
    8,474.41x = 12,711.05 × 2,927.83
  4. Step 4: Simplify right side
    8,474.41x = 37,215,747.10
  5. Step 5: Solve for x
    x = 37,215,747.10/8,474.41
  6. Step 6: Final answer
    x = 4,391.55

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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.