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Finding the Fourth Proportional to 8,377.94, 12,549.90 and 3,928.88

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Solution

The fourth proportional to 8,377.94, 12,549.90 and 3,928.88 is: 5,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.94 : 12,549.90 = 3,928.88 : x
  2. Step 2: Convert to fraction form
    8,377.94/12,549.90 = 3,928.88/x
  3. Step 3: Cross multiply
    8,377.94x = 12,549.90 × 3,928.88
  4. Step 4: Simplify right side
    8,377.94x = 49,307,051.11
  5. Step 5: Solve for x
    x = 49,307,051.11/8,377.94
  6. Step 6: Final answer
    x = 5,885.34

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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.