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Finding the Fourth Proportional to 8,246.90, 12,372.18 and 4,089.17

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Solution

The fourth proportional to 8,246.90, 12,372.18 and 4,089.17 is: 6,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.90 : 12,372.18 = 4,089.17 : x
  2. Step 2: Convert to fraction form
    8,246.90/12,372.18 = 4,089.17/x
  3. Step 3: Cross multiply
    8,246.90x = 12,372.18 × 4,089.17
  4. Step 4: Simplify right side
    8,246.90x = 50,591,947.29
  5. Step 5: Solve for x
    x = 50,591,947.29/8,246.90
  6. Step 6: Final answer
    x = 6,134.66

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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.