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Finding the Fourth Proportional to 8,351.08, 12,509.88 and 3,972.76

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Solution

The fourth proportional to 8,351.08, 12,509.88 and 3,972.76 is: 5,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.08 : 12,509.88 = 3,972.76 : x
  2. Step 2: Convert to fraction form
    8,351.08/12,509.88 = 3,972.76/x
  3. Step 3: Cross multiply
    8,351.08x = 12,509.88 × 3,972.76
  4. Step 4: Simplify right side
    8,351.08x = 49,698,750.87
  5. Step 5: Solve for x
    x = 49,698,750.87/8,351.08
  6. Step 6: Final answer
    x = 5,951.18

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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.