Home / 8,156.11-12,236.05-2,890.84

Finding the Fourth Proportional to 8,156.11, 12,236.05 and 2,890.84

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Solution

The fourth proportional to 8,156.11, 12,236.05 and 2,890.84 is: 4,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.11 : 12,236.05 = 2,890.84 : x
  2. Step 2: Convert to fraction form
    8,156.11/12,236.05 = 2,890.84/x
  3. Step 3: Cross multiply
    8,156.11x = 12,236.05 × 2,890.84
  4. Step 4: Simplify right side
    8,156.11x = 35,372,387.15
  5. Step 5: Solve for x
    x = 35,372,387.15/8,156.11
  6. Step 6: Final answer
    x = 4,336.92

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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.