Home / 8,236.56-12,340.38-6,858.76

Finding the Fourth Proportional to 8,236.56, 12,340.38 and 6,858.76

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Solution

The fourth proportional to 8,236.56, 12,340.38 and 6,858.76 is: 10,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.56 : 12,340.38 = 6,858.76 : x
  2. Step 2: Convert to fraction form
    8,236.56/12,340.38 = 6,858.76/x
  3. Step 3: Cross multiply
    8,236.56x = 12,340.38 × 6,858.76
  4. Step 4: Simplify right side
    8,236.56x = 84,639,704.73
  5. Step 5: Solve for x
    x = 84,639,704.73/8,236.56
  6. Step 6: Final answer
    x = 10,276.10

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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.